Inscribed angle theorem proof | High School Geometry | High School Math | Khan Academy

[@Angel-ggx]

not to offend my math teacher , but she never shows/explains us new subjects and gives homework and weekly quizes witch makes it really hard to raise/keep a high grade in her class, BUT ... Thanks to you , i always learn the subjects!!! , i went from a F to a D+, and my goals are to raise to a B , THANK YOU KHAN ACADEMY !!!!

[@hannahjanz5119]

Angel G if not can

[@okaythenwhatever3573]

Angel G which not witch

[@kolaajibola1929]

Hahaha!!!!

[@xaimpo]

did it raise to a B?

[@Angel-ggx]

​@@xaimpo That was a comment 8yrs ago bro idk what happend.

[@daviddaasian9685]

As a 7th grader learning advanced math topics alone, it's not always easy to just read instructions in my textbook and fully understand the topic. But, thanks to Khan Academy, I can finally learn without any complications or confusion. Thank you so much!!!

[@Tusken42]

Je suis française et je comprends mieux cette leçon que celle dans mon livre !! Merci

[@Gonzo01]

You make it so clear. Thanks!

[@TheSunMessiah]

the only teacher on youtube which actually helps me pass exams and grading periods...thanks man

[@viaquabee]

oneshot fan detected

[@papagayin3]

Oh, God, I never understood this at school... You make it look so easy!

[@ve2zzz]

Excellent teaching !!!! Makes understanding so easy !

[@ttd972]

If you haven't watched the video yet, pause it at 3:40 and try to solve the rest yourself! It's a fun puzzle

[@sanhitmaity7183]

A very good education platform...

[@TPBHvideos]

time to pass my geometry test!

[@CarlosOAO]

did you pass it ?

[@Eng586]

Lol 9 years later sheesh

[@CyColeman-z6m]

@@Eng58612 years later…

[@nickambrose50]

love your videos they help me fall asleep thanks

[@iwannacommitjisatsu5858]

Lmao

[@unknownperson2973]

Thank you our teacher never even taught us this lmao... but its going to be on the test...

[@noelradhakrishnan4423]

😂🔥

[@jetpaq]

honestly ive learned as much algebra as I have geometry in these videos..the whole idea of " prooving.....of "prooooooving" each answer( only you sal heads will get that joke.LOL) , he arms you with an insight thats hard to forget during its application. I really have much respect for his teaching ethic. Assume we know nothing( which is usually true) then show you everything but make it understandable..what a genius.!

[@juanantoniobarragan9536]

Thank you so much for that clear demonstration

[@ericcvt]

excellent very theoretical and straight to the poing

[@okaythenwhatever3573]

Life Worth Living yep, straight to the poing and pong

[@nayjer2576]

Great and slow explanation, after your explanation of the first case I got the other two.

[@ahmedwaly9073]

Amazing

[@parikshituniyal]

Theta and si...very intriguing

[@AlexeyYunoshev]

Thanks a lot! It was very helpful

[@judgenap]

Brilliant . understand it now. Thanks .

[@tsukiyakikid8950]

Thanks comrade, Many more students shall pass exams after quarantine thanks to you.

[@theoyanto]

Very useful thank you, I didn't realise that geometry could be so interesting and informative

[@saritdas3833]

Divine contribution for the students ❤❤❤❤❤❤

[@indigobloo7441]

Omg thank you so much i have something due in a few hours and i havent even started

[@danielsayre6161]

Thanks for the help.

[@prestidigitonuim_w.cheese]

this man is my childhood

[@browniesnofrownies4843]

I don’t get how si and theta are confusing..???

[@iwannacommitjisatsu5858]

Si=x Theta=y

[@ashvikgarg4913]

i mean like your here aswel

[@jizzyq106]

This man really out here drawing straighter lines with a mouse than i ever could with a ruler

[@henrrymendoza]

Awesome explanation, geometry is beautiful!

[@caitlincolter4919]

I am sure if I was not so tired this would make more sense. I need a C+ in this class and I am struggling with a F. Guess I will be watching a lot more of your videos.

[@JimmyRose1]

8:00 How does the diameter prove that Si equals 1/2 Theta?

[@SequinBrain]

I've never seen this before. Surprisingly, it never came up in any of the math classes after geometry, which I somehow missed.

[@marekstefanecofficial]

Thanks a lot!

[@freddyyaniga]

can you please just use x and y the si and theta thing is really confusing

[@rashmibhardwaj1328]

freddyyaniga studios true

[@od3stroyer771]

@Just Me lol no

[@salsadsid]

interesting work.. love you salman .. Great man not ever born.

[@lixgaze9390]

Really nice video ... our maths teacher uses terms which makes it hard for me to understand thanks to u the concept is clear thank u Khan Academy

[@joedimon]

Love this proof

[@gopikadas7674]

Ohhhhh this makes soooo much more senseeee

[@sharljnst]

Very good at explaining

[@drevil37373]

i wanted to make a psi joke but i dePSIded not to

[@okaythenwhatever3573]

drevil37373 I was going to but you PSIched me out

[@TheRealKayTrigga]

💀I wanna make math jokes

[@moth36]

Nice proof

[@Rxhitkhatana]

2010 version of Sal ... op mic btw

[@cameronciarrachi436]

Why do you hate X and Y?

[@NatenguyenYT]

Because My X wont get over me, she keeps saying she's "Sorry" but I blocked her eventually so its all gud.

[@catmanchester3847]

I would have liked some more real examples, like with numbers and solving for other angles

[@Anomaly-bv2wn]

this helped thnks

[@shadybigfan]

should give us numbers with the examples

[@lydianoronha522]

Yes truly a good helpful one thanks #khans academy

[@fashionablylate7463]

What about with quadrilaterals instead of triangles

[@kianawhite5793]

Very good....

[@MrMohsinkh]

I object sir............. fi 1 ias equal to fi 2 because they share the same chord........... kindly guide me.

[@jibreelahmed6503]

Yes si 1 and si 2 are the same and angles and they have the same arc

[@oscardarla]

I really hate circles, thank you youtube!

[@jackdudar3982]

thank you Khan

[@socialelitist4256]

I have my gcse math exam at 27th and I understand a fair chunk of it. Watched the video twice, and I have a few questions: 6:41 if 2 Si equates 1 Beta, and if you take away the two, it equals zero, then why the hell is it half of Beta?! Or is it 0.5 x Beta? I see it recourring a multiple/factor (however you would call it), but shouldn't it be 2? Prominently at 14:02 shouldn't that formula be 2Si = 1Beta? This is messing with what I learnt from school, that a similar example of this, should 1Beta = 2Si, or 1Beta = Si x 2.

[@eyyayy8260]

I know you made this reply 5 years ago, but I had a stroke trying to understand this.

[@franchezcavictorino]

I am confusion???¿¿¿?¿

[@Android-jq6wd]

great video

[@hawimohammed6175]

best best best best explanation keep it up

[@sat2ap329]

good

[@marchmelendez]

You have awesome handwriting

[@CathyAnneable]

thumbs up for hd

[@Jaba6798]

Genius

[@EnvyAbomination]

Wait isn't that angle at 5:03 supposed to be a linear angle too?

[@DagimawitMengistu]

Am 14 year old now 😂

[@jhonrayplays6881]

what app do you use

[@abdulshakoor5782]

go nice work sir

[@sullivannix4509]

I still dont get it

[@vhfhdkfzu7317]

Sullivan Nix noooooooo

[@abdulkhadir4498]

My book says same arc which is so confusing!Thanks so much for the subtended arc lmao.

[@roxsobad7]

has any1 told y that u have awesome handwriting?

[@Th30Hacker]

AWESOME! Best man alive :D

[@okaythenwhatever3573]

Th30Hacker Wait you r dead ;)

[@ARN48411]

I wanted last proof

[@dansp51]

sounds like frank zappa teaching geometry :)

[@peterphilips5152]

*Not to scale

[@GndmMkv]

Sal. Even though this video help, it would been better if you state the theroem and postulate.

[@okaythenwhatever3573]

Allen Deng no theorem fam just equations

[@TakticalTekniq]

subtended...SUBTENDED...S-U-B-TENDED!!! LOL OKAY!!!!

[@okaythenwhatever3573]

Timothy Grant thats why I subbed and I didnt know why

[@maybeluca8027]

the mystery

[@fazzynone1]

X and y is confusing

[@JennyBeCool]

What programme do you use when you're drawing?

[@ashvikgarg4913]

it's their own software

[@ahmedalbdairi4388]

i wish there's another way to explain this.

[@richardswanson455]

just kidding really well explained. your very articulate

[@jeonghanandeunwoosshalalal262]

Wait, what?! This is why I didn't want honors geometry...

[@bBbKce]

cool bro

[@shiinamashiro6231]

What if there is another central angle? I don't know what to do :/ there are 2 central angles and 1 inscribed angle in my problem

[@pranavs5998]

i know im 5 years late but lol idk

[@zuzkhin4472]

About to have a math test in 40 minutes lol

[@FrankTehTank96]

His voice reminds me of Samuel L Jackson... O.O

[@looks8727]

yeah this is way too confusing tbh

[@kikachu2036]

I’m just trying to complete an 8 question quiz😃 and i’m tryna to not fail it yk…i’m too stupid for this and tired lmao.

[@ming9935]

Why do I still not understand…

[@evibot4718]

WHO'S WATCHING THIS VIDEO IN 2008??????!!!!!!!!!!!!

[@mspaint1615]

+Joseph Green "Uploaded on Mar 18, 2010" its 2019 dammit

[@Luana_dm7qx]

+fangirlninja lol

[@samkthegamer1017]

im the newest comment here

[@EileenTaylor1]

oh god, this is 14 minutes

[@okaythenwhatever3573]

Eileen Taylor oh god, a complainer

[@DeanAnderson-dw2vk]

Oh yeah sigma😁😁😁🤣🤣🤣😂😂

[@nfspayback1248]

I dont get any of it ughughgughughughhgughguhugh!!!!!!!!!!!!!!!!!!!!!!!! I tried solving the questions yesterday and believe it or not , I spent 6 hours on this and till 12 pm , I rage quit!!!!!!!!!!!!!!!!!!!!

[@EternalShadow1667]

Nfs Payback you prob don’t get the background to it. Never give up, ik exactly what u mean, spent approx 2 days on nested fractions. Its ez now. Just put in the effort.

[@prafuljadhao3672]

Mahol

[@jkgan4952]

Smarrtt

[@grzegorzg447]

ima pretend i understood

[@priyabridgemohan2250]

Plz stop saying si or thetha or whatever it is it’s confusing

[@Cypeq]

THIRD!

[@miravaville]

he make it more confusing!!!!

[@jerfersonmatos28]

I think the whole idea is that is you make a triangle from the middle of the circle to two points of the circunference the angle of the triangle in the middle of the circle is gonna be twice of a triangle that take the same two point of the circunference but insted of parting from the middle parting from any place of the circunference. I'm sure nobody understood my explanation 😂

[@manasakaguchi]

Me did the whole video: si.... theta.... wait how do your pronounce these... r.I.p x and y

[@truhoes762]

bro MLG

[@SuperSmosh123]

How?

[@fireball221000]

DoritosDew get out

[@nXusGFX]

+DoritosDew this made me lose braincells. im trying to do homework. not helpfull :(

[@SuperSmosh123]

it is

[@sanjitmnty1]

Dear sir se padhana sikh

[@bibi7043]

peen

[@King-wi4zq]

Stop being a nerd and say X and Y or A and B