Pythagorean theorem proof using similarity | Geometry | Khan Academy

[@brindaparthasarathy7344]

Your lecture on Pythagorean Theorem is pristine.Thanks a million.

[@babykikino]

I had learned Pythagorean Theorem last year in middle school but no one teach me why a^2+b^2=c^2 yr teaching is easy to understand thx a lot~!

[@MahmoodSaeedB]

Do you still remember this lesson? 😆

[@darkreaper4990]

I wish I had these lectures when I was in school. My maths scores would be completely different.

[@ChucklePetsGalore]

You confused the shit out of me

[@Sloth7d]

And it seems in many schools, teachers suffice themselves with teaching you how to solve a problem without telling you why that works. And I personally believe retention is better attaned when one nows why something works just as much as when they learn how to do the something.

[@MahmoodSaeedB]

Very truly

[@Androconus]

Brilliant! I can't pause or re-wind my teacher, but I can to you! Thank you! liked, Favorited and subscribed until further notice.

[@alexmisra6690]

How's life 9 years later

[@omargomez130]

@@alexmisra6690 Lmaoooooo 😂😂

[@niqalina]

are you a math genius now

[@bernardmartinelli268]

@@niqalina no further notice has been received

[@sarapadeti1125]

You can pause your teacher If u have a gun

[@NayimKay]

I love learning from you, fellow Khan here.

[@zacmarion]

why do you add the two equations?

[@LOLworldofwarcrafLOL]

We're learning about geometry in class now, and we are at a sub-chapter about just this. I didn't understand it in class, but now i did! Thanks :D

[@donaldtrumpawuwhhwbs]

So how’s life?

[@lochlainnmcgall2737]

Day before my math exam, didn't learn this thank you some much. Some hero just don't wear capes.

[@elifisch9485]

How did you do?

[@thec00kiem0nst3r]

Sal, when you were young did you figure this out for yourself? Because I was never able to figure this out, you just showed me. Thanks

[@ahadmoeen4102]

We have to prove that except that we also have to prove the triangles similar.

[@simarjyotsingh2064]

Thank you khan academy

[@rolandsmith7758]

great video, even clearer if you were to draw the 3 triangles

[@xDMaddiezxD]

THANK YOU!

[@aleisxd5902]

oh man thank you so much!

[@ashvith6943]

Thqs helped me a lot..

[@ARN48411]

Very nice proving❤

[@10minutepapercraftandorgan74]

thank you verrrrrrrry much

[@HaPPiKhuSH]

Mohd Abuzar nice video 👍

[@TheShubLub]

At 8:50 mind=blown.... How come I didn't learn this in school? I mean we used pythagorean theorem, but we had no idea what it really was.

[@jennytan939]

why did you add a^2 = cd and b^2 = ce together?

[@seanm636]

To get to the proof. He's allowed as they're ratios of the same triangle.

[@jeremiah-ii8bt]

Does anyone know why he split the triangle into three ? I understand the gist but don’t understand why he used cos aswell

[@natstey]

thank you

[@reginamothiba660]

brillant

[@ManualShark24]

Because the 2 smaller similar triangles make up the big triangle

[@whengale]

how did you know to add a² = cd and b² = ce? adding those two equations seems totally arbitrary to me and i don't understand why.

[@wolfieswifty13]

i always mistaken the hypotenuse with hypothalamus :(

[@JoshiNischal]

Can i know which software do you use to make these videos?

[@jolo68]

Can you do a video about venn perplexor? My daughter is the gifted 5th grade class and is having a tiny problem with it.

[@soulreaperichig0]

@Fatheena 5+7=12

[@Sloth7d]

I was just about to post this.

[@ThomasGiles]

That was awesome!

[@anyarendahl9958]

what is given and what do you prove?

[@rafikijonas3399]

That works great

[@grimmielovex64]

BE MY TEACHER!

[@86Ivar]

anyone can find the khanacademy abaout fractals?

[@JohnDoe-td1jq]

I LIKE TURTLES EVERYONE!

[@deathtaco4095]

if you read all theas letters out loud that is how i am feeling

[@user-Orkb186-3]

I learn't this at school in 1947

[@user-Orkb186-3]

Correction, I meant 1948 when I was 13 years old.

[@afterburnerfox]

Amount of subscribers and amount of likes don't match

[@vwlz8637]

cos there is too much video for all the subs

[@Noldy__]

Most watch the videos on their site as they are embedded over there. For example this, looks like this www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-pythagorean-proofs/v/pythagorean-theorem-proof-using-similarity

[@ale80550]

what is this sftwre you are using called?

[@SuperKensingh]

u r awesome dude

[@Afzal.alam.77]

Afzal Alam roll no 23 nice video👌👌👌

[@malumateislam.]

Suhail saifi roll no 24 nice video

[@pfever]

This video was pretty confusing lol you didn't use the right colors

[@simarjyotsingh2064]

😀😀😇😇😇

[@JohnDoe-td1jq]

KITTEN!!!!!!!!!!!!!!!!!!!!!

[@JohnDoe-td1jq]

FOURTEENTH COMMENT! Do you like italian food?

[@oxane801]

😑

[@RangaNanayakkara]

this is not a prove this is a example that shows the assumption is correct. prove should be showing how it is possible and why is it . Pythagorean theorem is still one theory that has no prove just like PI.

[@thenawabgaming]

I might doubt that. Pythagorean theorem has many proof including one consisting of using the proportionality of sides and formulae to calculate their squares

[@TheFunkyCriminal]

no dude there are many many proofs of this theorem depending on what assumptions you're willing to take

[@Spasgun]

Ranga Nanayakkara this is a proof

[@RangaNanayakkara]

no arguments with anyone who doesn't understand differences between why and true

[@Spasgun]

Let there be a right triangle with sides of length a, b and c with c being the hypotenuse, then it holds that a^2 + b^2 = c^2. Proof. The one in the video since it can be applied to any right triangle. I think you don't understand the way mathematical proofs work

[@f00tballfever]

mind f'ed.

[@eltonmthombeni1111]

🤔💔⁉

[@maxcaseylin]

THAT PROOF WAS CREATED BY EINSTEIN!!!!

[@JohnDoe-td1jq]

FIFTEENTH COMMENT! I like turtles

[@sarojd1]

Thank you sir

[@jordan-wv3op]

THANK YOU