Area of circle

[@likeanuke2130]

My teacher told this when I was in 9th with more deep explanation

[@Lucario.0P]

My teacher taught me this in 7th (it was a practical) Edit: Make the likes on my reply higher than the main comment.

[@ShantanuPendam]

Can you comment the explanation please

[@thebestbigbrain]

It was 8th for me

[@JG-qh1rv]

​​@@ShantanuPendam bro it's not just breaking into small parts and forming a rectangle to find area of any shape we use calculus u will not understand this now and this kids are commenting that they know about it they even don't know why we break it into smaller parts

[@notaspect8033]

My*

[@wandering_pirate]

"Why didn't school teach us this?" - The guy who sleeps during class Is this the most liked comment of the video?

[@KrimzyEditz]

Yes, they taught this in 6th grade

[@Jaadu391]

"Why doesn't school teach us something relevant?" - Probably everybody

[@Whatthevr_official]

​@@KrimzyEditzbro i learned this in 5th, and then I moved and people in my class are just learning that noe in grade 9 💀

[@clone3952]

Ok? So what? Have you conquered the earth or something? ​@@Whatthevr_official

[@Thanos18790]

My fifth grade teacher told me

[@ZeynalkaYT]

Actually, they did, but we were too lazy to listen.

[@Yeezynight]

Wow sir you're here big fan.

[@egghamsil]

who's "we"?

[@schedark]

​@@egghamsil"we? Whos we? There is no we."

[@anjumanarabegum9431]

​@@YeezynightTf U sayin big fan? She/he got 100k with just 1 vid

[@user-dk8hq8qj8r]

@@anjumanarabegum9431 bro no one cares

[@TessTegals2]

“Why didn’t school teach us this?” “Cuz they don’t got the time to draw an infinite amount of triangles.”

[@Nick12_45]

"Hey what's the area of this pizza?" "Aight lemme slice it..."

[@Theplugthatisunplugged]

😂😂

[@user-xc7js3ll9g]

Ok

[@meroplayz4838]

School pizza party be like:

[@mysticMaker7639]

​@@meroplayz4838real

[@jett.3930]

​@@meroplayz4838 HELP

[@christinafaraklou239]

"The pizza slices ain't even that small" *The pizza slices:*

[@flox1078]

School pizza party be like:

[@Turtlesgsm]

FR

[@user-be8nd9fb9m]

Nah, it's its school party's pizza

[@jumentoqueanima]

​@@flox1078Lmao I commented that.

[@jumentoqueanima]

​@@TurtlesgsmYeah.

[@ScaleShift]

Using pi here cheats us out of the opportunity to easily see the pattern of quadratics appearing in math: Distance fallen = y = 1/2gt^2 Spring energy = U = 1/2kx^2 Kinetic energy = K = 1/2mv^2 Circular area = A = 1/2Τr^2 Taken from the Tau Manifesto, which I recommend giving a read.

[@123crackera]

Well... I think it's mostly because of diferencial/integrals stuff where for you to get a x² from 1, you multiply it by 1/2 (idk how to explain it but it's smth like that)

[@Xerxes-py1it]

Because it's not rigorous, but it's always nice to give visualization as a plus when things can be visualized

[@shreyash7890]

Brother, they teach this in school. It's you who was not listening 😂

[@OHI287]

For real.I learned this in class 7.

[@KrimzyEditz]

​@@OHI287yeah

[@moksedahmed5808]

​@@OHI287 same

[@IzeYT12]

I think they didnt teach it like this

[@notyouraveragejared3341]

They dont teach this BS method but I learned this is 4th

[@Adnexus181]

This is exactly what we learned in school. Edit: Yall we do not have the same teachers use your brain.

[@shsatisfaction3505]

You mean memorizing the formula?😂

[@Adnexus181]

@@shsatisfaction3505 no. My teacher literally explained how we calculate pie. Aka the video above.

[@9Fast99]

R^2*3.14 (or pi)

[@TMMarrow]

Literally learned about, 🥧 r squared, today. This dudes teippin

[@WAnderLeeo]

​@@Adnexus181you realize the video above is not how to calculate pi, it uses the calculation of pi for the proof

[@Sean_MK]

If anyone confused, this video is explaining the process of solving the area of a circle. To find the area you need the radius (R). Once you have that you need to take pi (3.14 or π) times radius (R) squared (²) so the formula of solving this equation is πr². Something similar to find the circumference (Half the circle) is done when you take Diameter (D) and pi (3.14 or π) and the formula to solve for the circumference (C) is done like this: πD. If you still dont understand it, look up circle song.

[@Origami-Wiz]

Im beyond scared of circles after watching this.

[@AlsiBoiz]

The Guy - "Why didn't school teach us this?" Teacher - "Why are you sleeping in the class?" 😂

[@ZachKingClips123]

copy commenter

[@vishal-rv]

Bro,i saw this explanation in ncert book..

[@improveyourself1895]

Well in India I know,none of the teachers taught this just told the formula,well it's the truth wether you accept it or not,not all teachers teach passionately

[@yousseframi4808]

Ur so funny

[@AkiraS.A.Z]

​@@improveyourself1895cuz what's the point of turning it into a rectangle? Takes alot more time, and isnt even possbile in the real world

[@Tatsumommy]

"Determine that it's a circle" "Sir, it clearly is a circle" "Or is it?" _VSauce theme musik_ Edit: I'm Philippines and I just replaced c with k because it sounds alot kooler _💀_

[@butterscauch8496]

Musi(k)

[@sohambandyopadhyayyoutube]

​@@butterscauch8496He is German

[@BlazeFreaker]

@@sohambandyopadhyayyoutube or danish

[@sohambandyopadhyayyoutube]

@@BlazeFreaker Might Be

[@butterscauch8496]

@@sohambandyopadhyayyoutube oh ok

[@ibraheemzahidmajeed2408]

the teacher taught this when you was absent in the class , mently😂😅

[@biologyin5minute]

Beauty of maths ❤ Beauty of animation 👀🫶

[@obanaiart8582]

Bro it is in 7th standard NCERT book

[@saju8677]

nope

[@obanaiart8582]

@@saju8677 it is

[@obanaiart8582]

​@@saju8677 Page no. 222 it is mentioned

[@saju8677]

@@obanaiart8582 if it then my teacher didn't explained it

[@weopkinotdrink175]

Bro wdym I learn it since grade 6 💀

[@Ributwoi]

"Remember kids,a circle is a rectangle." Edit: Alright man,i know its a parallelogram,just go on with the joke.

[@Theplugthatisunplugged]

Fr

[@user-mo1iq7jl6z]

Technically the edges of said. " rectangle" are lot of curves in a row

[@Omw470]

Even still, if they were straight sides, it is still technically a parallelogram

[@murthysuroju8917]

I my 7th class only

[@_LORD7TH]

U

[@RohitKumar-ql2oo]

Love this comment section which appreciate a school more than a stupid short.

[@ItsBobGaming]

My school teached, and its formula for square mm,cm,m,km of circle and formula is r²π

[@tvthecat]

They probably did teach you this. You just weren’t listening.

[@Aakashneetard]

Lol

[@Dylanj8795]

Nope

[@tvthecat]

@@Dylanj8795 Mate, this is basic geometry.

[@Gamers_Boy-281]

​@@tvthecat I am in 7th grade and a topper and I know these but they never taught us 😢

[@tvthecat]

@@Gamers_Boy-281 What country are you in?

[@jakeywakey2665]

This is hilarious, except for the fact that they DID teach this

[@vampirzz]

not every school is the same

[@elma02530]

My school also did not teach it like this, they just slapped on formula after formula. Some of you are very lucky.

[@joaoriedel4036]

@@elma02530same with me

[@wickedchihuahua]

​@vampirzz If there is a single school that doesn't teach you this grade 1-12, that school is a scam, and a waste of time.

[@monkenuts4191]

​@@vampirzzIf your school doesnt reach you the Basic of the Basic Algebra then you are either in a warzone with No proper education system or you are in a Special needs school

[@pocopico76]

They don’t teach you this at school because it’s essentially wrong; it’s just a visual approximation trying to explain where πr^2 comes from, but in reality you can never square the circle, meaning you can never acquire a rectangle with an area that of circle, because you can’t have a rectangle with a side π (for simplicity assume r=1). Another way of looking at this is no matter how finely you cut the circle, if you look close enough you’ll see that the “πr^2” side is not really a straight line, only approximately! But that can put you in to thinking: if (again for simplicity) r=1 and you cut the periphery of the circle into Planck lengths then you might start questioning the infinity of π digits! Happy June 1st, everybody!😊

[@ctcghub]

"911, what's your emergency?" "My ball isn't balling"

[@aayanshpatel6570]

If you've ever opened your textbook book you would have seen these explanation 😂

[@ajinkyadinde939]

Underrated truth and comment as well😂😂

[@SanjibGhosh-pk4vf]

In west bengal board math test book has this explanation

[@uniqio5916]

Neber seen this bro i was like wtf after watching this 😅

[@hoi1899]

@@uniqio5916same

[@ABCDEF-ek7ni]

Nope

[@noahscreations]

They *LITERALLY* did. You’re just the one who fell asleep during that lesson…

[@naveententhousekalidas3470]

Loll😂

[@xxsmorezzxx6303]

Did not.

[@callmeweeb4350]

Idk where y'all did ur schooling, but I never learnt this

[@noahscreations]

@@xxsmorezzxx6303 did too.

[@SehrishAhmed-hq5bf]

​@@callmeweeb4350same

[@subhamkumardhal601]

Thank god my teacher explained it in details.

[@SanghamitraKar-sg7dr]

Yese hamare hamare school me padhaya gaya tha aur ye tarika hamare book me bhi tha ❤...

[@LilPersey]

'Why didn't they teach us?' : concludes with the formula in the books💀

[@prinsonthelakkadan8079]

π x radius x radius=πxrxr

[@peapod5629]

​​@@yousifazim4720 I'm very sure textbooks do teach it, it's just not something that is examinable and particularly important. So it's usually a sidenote but still taught. It's just students don't listen in class, or simply don't remember being taught this because in reality knowing this is useless so they aren't reminded of this ever again when solving problems

[@Jeahy.]

@@yousifazim4720 do me a favor and teach a bunch of kids who don’t want to learn the detailed version of the things they don’t want to learn. Sure some may want and that’s totally legitimate but if you explained every single revolutionary math formula and how it came to be it would take immense amounts of time, you simply can’t force a large collective of kids to follow on that. These are unnecessary details in the large picture that would clutter their minds more than aid in successfully applying the formula. Remember I’m talking about the general public here, to every rule there is an exception.

[@noovsky7981]

What’s important in maths is not formulas, it is understanding what is going on. If you understand how it happens, it becomes much easier to apply formulae to different problems.

[@Breakerchannel1]

​@@peapod5629 yeah it's always the student's fault Or reluctant teachers whose only missions are to make sure they survive and not even to teach 70% of their students properly

[@ZyphonEdits]

Alternate title: Why did I not go to school?

[@trapezoided]

Alternate comment: Why don't I realize that people go/went to different schools with different teachers?

[@midnightandsunnythebunnies6049]

@@trapezoidedevery school should teach students the area of like the most simple shape there is

[@user-qx3nx6wj2e]

@@midnightandsunnythebunnies6049 Yeah, but what the video means is why the area of the circle is that formula. Idk about you, but my teachers didn’t explain me that.

[@starwarsgaming8767]

@@trapezoidedyou ruined it

[@trapezoided]

@@midnightandsunnythebunnies6049 yeah, they should, but the fact is that they didn't. some students, including myself, had to go through high school without ever learning about this despite being completely attentive in class. we were told to memorize the formulae and how to use them, but never the logic behind them.

[@johannesgoeth3448]

I'm a math teacher and exactly did this with my students. Marking the edge of a circle and cutting it into 16 equal pieces and rearrange it as a rectangle. I hate this "why didn't school teach us this" sh1t.... Damn pay attention instead of spreading fake news...

[@ehawg1142]

This is the best video I’ve seen all day 😂😂😂

[@ujjwalseth664]

"Why didn't school teach us this?" Guy sleeping in calculus class

[@leetlebit403]

Not even, we legit learned this in primary school 😂

[@faizmusa8956]

This is pre algebra 😂

[@ShinobuFanXoxox]

@@leetlebit403that’s what I’m saying

[@asves4536]

@@leetlebit403the video is referring to the explanation of why the formula makes sense, everyone learns how to calculate a circle, but not everyone knows why it is the way it is

[@RelativeConfusion]

Really? I learned it in freshmen geometry

[@ZombieSurvivor101]

Flat earthers have been real silent since this video dropped 💀 Edit: yall please chill it's a joke 😅💀

[@arshadkarim1872]

Yeah because it become 4 cornered

[@Croissaneater69]

It ain't a sphere either it's a pear shabe

[@PizzaexpresspumpkinXP]

Yeah kinda not funny anymore, more of just rude/silly/stupid

[@Achilles-tp2rc]

You're the reason why there is still conflict 💀

[@Ector_902]

​@@Croissaneater69 pears are round one side and gets narrower towards the tip, the earth ain't a pear shape

[@dipankarhowladar9949]

This is actually the basic idea behind integration of a equation of circle to find its area

[@rajisaheed4027]

I just taught my students this concept last week.... I was grateful that I deed and they were glad..

[@imcrazydealwithit]

"Why didnt school teach us this" - the kid that was always drawing an eye

[@Super_Bac0n]

naww fr

[@sarcasticgirlkidlol5]

I'm that kid except I usually pay attention in class

[@HAM93160]

and the cool s

[@Moonbalm1414-yf8vp]

Hey that was me

[@DanielBro42]

Lol I loved drawing eyes

[@Iamtheshortestcomment]

The true meaning behind this video is that you will never get the true area of a circle as pi is irrational, thus meaning that the smaller fractions represent another digit of pi, the more digits you use, the more accurate it is, although it will never be fully accurate

[@jetstream8180]

Wrong

[@mixomix444Xpanda]

tell us if you know then​@@jetstream8180

[@Celestial_Zenith]

Maybe not the true meaning behind the video, but what he said about it's irrationality, and not being able to get an exact answer is true

[@ethos8863]

This is wrong. Even if pi was rational, it would still look like this. This is actually about limits and limits can approach rational numbers and even integers

[@user-hd2xe1ds1n]

Bruh💀💀💀

[@KrishnaKumar-gf9ot]

Bro this is in NCERT and teachers are explaining it well...

[@ZoeriaOsrat]

I must say Chinese dramas are much better than Hollywood and Bollywood movies 😅😅 I can't understand why am I so late to watch chinese dramas i I should start watching Chinese drama from the very beginning 😊😮 Chinese dramas are awesome 😎👍😎👍😎👍👍😎👍😎

[@pepsi3705]

Wtf?

[@leamangubat8026]

"THATS ENOUGH SLICES MAN"😭😭💀🔥🔥

[@Blue_Dragon824]

School pizza party:

[@dylbanan140]

​@@Blue_Dragon824circle to search didn't help me finding another Copy of your pfp, is made by you?

[@LegendFigueroa-pg5mg]

💀

[@Siamball11]

​@@Blue_Dragon824💀bro

[@Lost_Phoenix360]

This is literally EXACTLY what we were taught in school.

[@moondust2365]

Tbf, not everyone learns it that way. If a teacher isn't particularly interested in math themselves or if they're being forced to squeeze multiple lessons in a short amount of time, the only thing you get is memorizing the formula...

[@cookie-kg3px]

Our teacher just straight ass gave us the formula And a bunch of questions through smart class , and that's it 😂

[@cookie-kg3px]

​@@moondust2365fr😅

[@Breakerchannel1]

​@@moondust2365 thus is exactly what is happening to me in college

[@Meammeowmeknownothin]

Bro he talking about how its formula came out

[@dmitrymalkov6732]

It's 'cause there is absolutely no way to draw animations of such complexity on a blackboard.

[@anjali-mx3ws]

I remember when i was in 9th grade i explained the derivations of area of (circle , ellipse, cylinder) and so many other shapes as a presentation but no one really cared back then now they are making cool edits about it....

[@chrishood5595]

"I created you. You may not recognize me, but I'm still you."

[@user-xc7js3ll9g]

Ok

[@taymzgaming]

🗿​@@user-xc7js3ll9g

[@0115puneet]

Ok

[@marionthetaglish8648]

OMG 666 LIKES

[@Amethyst_Lavender]

@@marionthetaglish8648 now it's 699 likes 😂

[@V_ChessGuy]

It’s the same principle as calculus, if you can get the segments infinitely small then you will get a perfect rectangle!

[@Yaromir2008]

It is

[@andrewtramel4390]

@@Yaromir2008 No, it's just the thing from the first iteration (small ridges), but WAY smaller, leading to a close, but still decently far off.

[@jacksonvaldez5911]

​@@andrewtramel4390 true. circles don't exist, just as continuous values don't exist

[@IamRigour]

​@@jacksonvaldez5911 Huh?

[@ie-dOtinc]

How something infinitely small supposed to make a circle if you add up infinitely small things it's zero infinitely small thing plus infinitely small thing equals zero you can't have those together to make anything

[@SaswatSatpathy]

We were taught this, not a big deal. Yes, not on this illustrative scale, but the concept of radial line covering entire perimeter covering the area is standard explanation for area formula of circle.

[@really7544]

USING CALCULAS TO FIND THE AREA OF THIS TRIANGLE IS WAY MORE EASIER THAN THIS.

[@__Legendary_DarkSight_Leader__]

Song- Suffer with me (slowed+reverb)

[@YoussefElshaikh]

Thank you 🙏🙏🙏🙏🙏🙏😭😭😭😭

[@Uhfbjdhdf]

Thx bro👍

[@bruh1230]

You're a real one homie appreciate it😭🙏

[@AnnoyedCrescentMoon-wm9iu]

When men become legends:

[@toco_cubo]

i love you man, never give up on anything

[@mrdeadbush]

The kid that never study nor pay attention in class and still get better grade than most people. Meanwhile at home:

[@Hadjnix]

I'm the kid who never studies but gets good grades

[@Ibrahim-13.]

😂😂😂😂😂I amtoo

[@sora_ccz]

I don't study nor pay attention in class but I still get high grades 😭😭

[@Hadjnix]

@@sora_ccz same

[@Abhiraj034]

It is easier to understand as a triangle if you open folds from border to border till it ends at the radius, the height of triangle will be r and base will be 2πr and so by triangle area - 1/2*2πr*r = πr²

[@NiftyNixy]

I think pi r square might be easier than this😅

[@DS_Legend]

So here's the discovery - Archimedes approximated the area of a circle by using the Pythagorean Theorem to find the areas of two regular polygons: the polygon inscribed within the circle and the polygon within which the circle was circumscribed.

[@arandomperso4438]

SONG NAME

[@Nolwke]

bro circumcised a circle

[@iIdentifyAsKing]

Hu?

[@gabrielgorriti6315]

@@Nolwkelmao

[@Terra_Blade862]

Godzilla had a stroke trying to read this and fucking died

[@AlexanderSchram-us9er]

The formula in the end, they literally taught us this

[@MrYugio3]

it doesnt matter if you cant see what it represents

[@herobrine1847]

You can still apply it. Not everything has to be fully understood before progressing onto more complex ideas. It’s normal to circle back to make new connections.

[@MrYugio3]

@@herobrine1847 for me, understand the base is basic to make progess.If you dont know what represent a formula, yes, you can "apply" it. But you are just using a black box (valid for some cases). But as a kid, it's better to see where it comes from. How it's made. How it's used correctly. That give the child the ability to make a faster progress, acquire critical thinking and apply it to the real world.

[@testacals]

@@MrYugio3 The formula is valid for all cases. Also, in high when you study integration they teach you this. Also, being able to use a black box, or rather a function is immensely useful skill

[@dilnoorgill9241]

They even told us this

[@deepx8679]

My school did taught me this😊

[@AdamHarvie29]

Its way easier to just do pie r squared since these questions you get a calculator for and are only in calculator tests

[@Exmoribundis]

Why is that all of a sudden when I'm finished with all my math classes for the rest of highschool, I get these videos. 🤦‍♂️

[@Professional_Surgeon]

You dont learn this in highschool. Its way earlier

[@AnosVoldigoat4612]

@@Professional_Surgeonexactly 😂😂

[@akselwallberg1811]

Yeah same. I dont even know this and im ending 9th grade in 3 weeks

[@Exmoribundis]

​@@Professional_Surgeon That's not my point. 🤦‍♂️ My point was why am I NOW getting these videos when I'm not going to be taking anymore math classes. I wasn't talking about *this* specific video alone, I just said “these videos” because more math videos, like the quadratic formula, have been showing up in my feed.

[@AkiraS.A.Z]

​@@akselwallberg1811they teach you how to calculate the area of a circle They dont tell you to make it a rectangle because that's useless and would take alot more time than just doing the actual equation

[@MonkFeet10]

"THAT'S ENOUGH SLICES!!!"

[@aNamelessNoob]

I'm not even in 7th grade but this is actually amazing and mind-breaking

[@Miraculous_Ladynoir]

As an Indian I cha confirm that we were taught this but we never paid attention 😂😂

[@foxa69]

Everyone is like “we learn that” but I’ve never learn this like that 😭😭 (Edit: I’ve learned that but not this way..)

[@p1edpiper]

Maybe you're too young, you're supposed to learn this in like 9th grade

[@foxa69]

@@p1edpiper not at all I’ve already past 9th grade 😭😭

[@zenix_pubgmobile]

​@@foxa69are you sure you didnt sleep in class bro

[@zenix_pubgmobile]

@@foxa69 i learnt this in 7th

[@Gavin703]

Bruh use your brain it's so logical

[@sameoldtunes7110]

I actually do remember being taught this in school , thanks for jogging my memory ! 👍

[@arandomperso4438]

SONG NAME PLZZZ

[@sameoldtunes7110]

@arandomperso4438 I’m sorry idk what it’s called 😭

[@lynxarcade2020]

​@@arandomperso4438suffer with me

[@priyanshisaxena1175]

Bro i m not lying but i never see such explanation and visualization 🙂🙂thanku so muchh...

[@yuvrajgoyal3189]

This is from class 12th chapter Area from integration using Element. If teacher taught this in 9th or 10th most of the students (actually every) won't understand and for this they have to first make you comfortable about Calculus.😮😮😏😏🤔🧐🤨

[@scratchymarcus2517]

lol, this guy slept through ALL OF MATH CLASS.

[@anisha6940]

NO MATTER where we are. Each country's textbook would have the explanation. May be some students slept😅😅. *NOSTALGIC MOMENTS*

[@Takerings]

From turkey, goverment text box Just tell the rules, our teacher made us buy a text book and it was where actual explanation was

[@bozkurtcekendoktorstrange2338]

Evet ben de Türküm ve ne zaman formülün ya da kuralın nereden geldiğini sorup söylemediklerinde ve kendim düşünüp 2 dakikada bir ispat oluştursam( çoğu zaman da doğru bulurum) sonu hep kavgayla bitiyor yok sınavda bunu mu soracak vaktin kısıtlı git üniversitede öğren bakalım üni'de de böyle üstükapalı mı öğreticekler.

[@Takerings]

@@bozkurtcekendoktorstrange2338 true 😭

[@muhammedga7303]

Mine didn't

[@Bari-gd]

​@@muhammedga7303 you probably the guy who is sleeping or not paying attention

[@devashishkalambe5014]

Yeah! My 6 year old brain was intelligent enough to get this back in school days

[@ronilmac111]

Yes as you make the segments of the circle smaller and smaller, the resulting parallelogram is converted into a fine rectangular

[@RacistDeplomat]

Most people saying you weren't attentive ......... should understand Not everybody got education like this......In my school we were told to memoriz3 formulas only.

[@KrimzyEditz]

Seeing your name, I think that they did teach you thie but you didn't pay attention

[@MagicRecords-de4ul]

Tf​@@KrimzyEditz

[@MrArora-gd7zh]

​@@KrimzyEditzfr

[@HonoredSenior]

Or maybe school systems are different in each country, just maybe ..​@@KrimzyEditz

[@RacistDeplomat]

@@KrimzyEditz so youre going to judge me based on the name i have put on the account ?

[@KRIMSON_HUNTER]

Bro is That one guy who is always absent the whole semester and reappears at final exam 💀

[@rev_YT4358]

brooooooooooooooo i dont get it am i the only one who hasnt seen this even though im 9th

[@vasukapoor2981]

And tops it from below 💀

[@TapatiGhosh-ko9qw]

Cmon guys,im a 10 year old and my dad taught me this,what do you all mean you learnt it in ninth grade 😂😂😂?

[@NandiniMaddheshiya-ym8hk]

Honestly I have never thought about only a circle like this and never learned by schools

[@BETA-LEADER]

POV- you learned about it today in math class -definitely not me🗿

[@swaffled884]

Wait same I’m not even joking

[@CaseyBananas]

I learned it like 2-4 months ago but close enough 😭

[@faznarushdhi4136]

Bro I did yesterday today's a Saturday

[@withernator]

Why didnt they teach us this in school. My brother in christ, this is calculus, where were you?

[@Hhsvhg]

He is talking about why is it like this many students hear about sin cos tan but they don’t know what are they or that they represent

[@fanficologist6621]

​​@@Hhsvhg how the fuck do you use sin cos tan if you don't know what they represent? What are they teaching kids in America? This is grade 9 maths.

[@withernator]

@@Hhsvhg i see you didn't pay attention in calculus either.

[@dafnickmalzkov3173]

Thou shall not wake up from his sleep, during the most impressive bits

[@zguyTV-gg7nj]

That's the big problem of school that it gives formulas, but don't explain why and how this work.

[@pulz1191]

For the first time I understood this

[@k.o.7358]

Integration is the easiest way to understand this concept , it's good to visualise such problems but why to take unnecessary load, wait till 12th class you will get to know🧑‍🍼

[@itz_me_ash2006]

Yess! Definite integration especially areas is my favourite part!!😊

[@NPC_005]

I'm in 10th and I'll find out now just because

[@ThePanEthiopian]

​@@NPC_005don't worry about it, it's fun until the exams 😂

[@imanoobplayer3628]

Hey buddy can you explain it to me please, I know I am not smart enough to get it sorry for bothering 😔

[@k.o.7358]

​​@@imanoobplayer3628 take any equation of circle for example ( x^2+y^2=r^2) , it's centre is at origin(0,0) now take the part in first quadrant , to get the eqn of circle in first quadrant modify the eqn as ( y= √(r^2-x ^2) ) , now integrate it according to definite integration as | y.dx with initial limit as 0 to r as final limit ,and then multiply the result by 4 as the circle lies in all the four quadrants , then you will surely get your answer as πr^2.

[@Moai_rocc]

That’s a really good way to show how pi is irrational Because no matter what, the more cuts you have, the more rectangular the end product will be

[@Joffrerap]

What does it have to do with irrationality

[@carebear2883]

Same question. Genuine.

[@lethallohn]

​@@JoffrerapGetting an extra digit of pi is like cutting more equal slices of a circle. Archimedes' method was how they originally solved for pi. The higher the polygon, the more accurate they we're at estimating pi.

[@Joffrerap]

@@lethallohn ok, and how does it relate to rationnality ?

[@lethallohn]

@@Joffrerap I'm not an expert in mathematics, but I at least know pi was proven to be irrational. Irrational numbers have a never ending decimal and no regularly repeating digits. While you can't prove pi is irrational with say Archimedes' method of estimating pi, I would guess you could make a conjecture that pi is irrational based on the fact that you can estimate for pi forever and show that at least the estimated digits aren't regularly repeating.

[@StrikesPerception]

Eh… whilst these aspects of math are interesting because they exhibit a visual nature, sometimes we have to simplify things by using abstract formulas. Math is much more than circles and time is much limited. I’m sure many teachers do show such visualised math problems, but it’s totally unnecessary since you cannot expect everyone to remember this when they could simply learn that A = pi * r^2

[@user-hw5hj5cz9x]

The things i want to learn +Tax +Job +Life The things i learnt +meanless things

[@printhallo]

To anyone saying they learned this in school, the guy is talking about the demonstration, not the video itself but the actual maths behind it, this is a part of Calculus taught in 12th grade, it is the demonstration of integration. The equation would be something like this: A = ∫ 0->R 2πr dr = 2π 1/2 r^2 ∣ r=R r=0 = πR2 A = ∫ 0->2π R^2 dθ = / R^2 θ | π = 0 θ = 2π let x = R sinθ, y = R cosθ, dx = R cosθ dθ ∫sqrt(R^2-x^2)dx = ∫R cosθ R cosθ dθ = R^2 ∫cos^2θ dθ R^2∫cos^2θdθ = 1/2 R^2 ∫(1+cos 2θ) dθ = 1/2R^2 [θ + 1/2sin 2θ] integral limits: x = 0, x=R after sub: θ = π/2 θ = 0 (π/2 + 1/2 sin π) − (0 + 1/2sin 0) = π/2 A = 1/4πR^2 => this is 1/4 of the total so: A = πR^2

[@user-xg5uu6oq6t]

Congratulations to the guy who show the whole calculation😂😂

[@Tigergaming_g]

i was taught how to approximate pi in 9th grade with a way easier equation, cant tell you how though cuz i dont know the english translations to the german terms i was taught. also forgot the formula cuz im stupid lol

[@guilhermewxs1840]

Bro u guys are lucky, calculus on 12th grade. In my school we'll be finishing pre calculus in 12th grade with half of the students not knowing how to add two fractions 😂😂 I had to self study that sh*t with Stewart's calculus book in 10th grade

[@Alex_Lussac]

​@@Tigergaming_gin easier classes like 9th you'll be taught in easier way only dumbo...😂 these are not basic this calculus that you'll be studing in class 11 dumbo. way to success has many step... you have to climb each one by one you can't jump to the goal directly thats why they dont told you this integration demontration

[@Rebel-ce9cm]

I don't understand but thanks for explaining

[@WhizzyCh]

nah this is lowk more confusing than what they taught in class ☠️

[@darrellwillis4871]

Not really, it's explaining where the formula comes from. Which is basically saying. "We cut a circle into triangles and rearrange them to look like a rectangle, we'll then find the area of the pizza rectangle."

[@JG-qh1rv]

bro it's not just breaking into small parts and forming a rectangle to find area of any shape we use calculus u will not understand this now and this kids are commenting that they know about it they even don't know why we break it into smaller parts

[@JG-qh1rv]

@@darrellwillis4871 Its not just breaking it into small parts and forming a rectangle we have to use integration to find area how u will find the area of rectangle? How u will find the area of any irregular shape huh? Pls go and find the real reasons we have to use calculus

[@WhizzyCh]

@@darrellwillis4871 It was easier to understand when the teacher taught us, not w this visual. Maybe it was easier for you to understand this, but not for me 🤷

[@PEPS7MAN]

They already teach this (at least in Turkey). While the perimeter of a circle is (π . r . 3), its area is (π . r . [x.x]). Even though it's not exactly like that, they actually teach.

[@anilkarhekar4277]

In india they taught us that in 7th

[@DemaL__]

If you didn't know : C = πD C = 2πR A = πr^2 C is circumference D is diameter R is radius A is area It's just an easier way

[@errr8856]

Area= (Pi)r² not (Pi)² though

[@errr8856]

But why is the area (pi) r², the same rectangle division in the video, right? I was never taught this- Also thanks for writing the laws!

[@DemaL__]

@@errr8856 thanks for letting me know I changed it

[@WannabeGamer2218]

My 7th grade teacher said Twinkle twinkle little star circumfrence equals 2 pi r (To the tune of little star)

[@twoplustwoisfive101INCOMEERROR]

Bro this was eazy lesson that is the formula of circle volume and the other one i forgot, what something hard in this lesson is if the question is reversed and make the other one of them gone and you have to work it on from the the start and if you founds it you gotta do the real countings that is asked in the exercise question

[@Williamsherrill-xt5ec]

“Ok guys now e will cut the circle into 100,000 prices”

[@milke9254]

360 would be enough but this is stupid as hell.. just do Pi times r² wtf

[@kumkum2532]

Are you dumb

[@Turkish_Edits153]

​@@milke9254its explaining why its pi.r.2

[@abhishekthakuri7586]

It's difficult to show this on blackboard. If they taught us we wouldn't bewn able to get that anyway.

[@mohamedamirmrabti6650]

Using integrals is a more efficient way to prove the formula

[@cwandtheblueenderman6568]

They definitely taught us about sleeping in class, guess you didn't listen to that either

[@peep9872]

🤓🤓

[@spidey4456]

Bro sure is sleeping in school and just wokeup to solve it.

[@user-ge9zn7nk8i]

we hd a good explanation in our school text book same as thz ..

[@bhaviknayyar5063]

But i was taught this in school 😊 Who else has learned it in school pls hit thumbs up guys ❤

[@Lv_BearLuvs]

They didn't need to teach us this... CUZ HARD GAME LEVELS DO 💀

[@shubhu_069]

Kids, read your books carefully, I was in CBSE and already gone through this illustration in NCERT, dont blame system, blame yourself to not being attentive and curious

[@Fang_XD7034]

Stfu bro u don't get it

[@EBBX.]

Brother I'm not getting focused while studying, help pls

[@shubhu_069]

@@EBBX. Align yourself with the time and knowledge when you're studying, and stay consistent doing it

[@EBBX.]

@@shubhu_069 align with time and knowledge?? Like how??

[@TheBeheadedConcierge]

Sounds like something the system would say

[@Whiztopia1221]

Simply because at that age if teachers tried to demonstrate kids like this they will simply bring scissors to class the very next day 😂😂

[@PushpendraSingh-md9rs]

Ye 7 ya 8 th class ki ncert ki theory me diya hua hai

[@CommentGPT0000]

Yes, you're right! The area of a circle is calculated using the formula pi (π) multiplied by the square of the circle's radius (r). In other words, area = πr².

[@_Red_RBLX_]

Didn't they teach us that in like... 8th grade tho?

[@Potato_lord212]

@@_Red_RBLX_for me 5th lol

[@rikusoma4539]

​@@Potato_lord212 YOU WERE LEARNING ABOUT PI IN *5TH GRADE*?!

[@itayoo1016]

Holy shit… Another AI commenter.

[@oindrilachowdhury4853]

Here comes the topper student 😂😂😂

[@jakobbjana]

School did teach us exactly this We learned it just a few weeks ago You were propably sleeping when they taught it to you

[@Dylanj8795]

I mean, they teach us the formula and how to use it, but they don’t tell us how it actually works

[@jakobbjana]

@@Dylanj8795 my teacher thought us exactly this We cut a paper circle into 8 pieces and put them together just like in the video

[@Dylanj8795]

@@jakobbjana Lucky

[@jakobbjana]

@@Dylanj8795 we have a really nice maths teacher

[@KrimzyEditz]

​@@Dylanj8795 no, he just payed attention during class

[@Ruszard23]

... School literally taught us what the radius of a circle is...