Central Angle Theorem

blackpenredpen,
math for fun,
blackpenredpen.com/bprplive, / blackpenredpen ,
[e-mail]

[@Pamekimo]

minus Y, plus Y also say bye bye

[@alitrux]

I subscribed for blackpenredpen, not for blackpenredpenbluepen. I am very dissapointed.

[@chesteezy5197]

My Number Theory professor disagreed with the theorem after I told him what it was. LOL

[@Klayx_]

night before maths exam. this man is amazing

[@balajishankar]

Fantastic.....especially the second part of the proof!

[@akshat9282]

Instead of saying that taking a point in the minor arc would be no good, you could have just stated why. It's a basic explanation and you just subtract both angles by 360°.

[@ankaparnahajova]

Precisely my thinking, I like to show precisely these three variations. Thank you for the video.

[@ThePowerfulOne07]

Love geometry theorems and concepts!

[@holyshit922]

We can use it for writing equation of angle bisector but it will be a little bit longer than comparing distances of point from both rays of angle

[@UnathiGX]

Yay...I just learned a new trick..Thanks BPRP

[@AndDiracisHisProphet]

crap, this is obvious -.-

[@chessandmathguy]

Beautiful.

[@wowfmomf6126]

Thanks for the daily doze of math

[@ingiford175]

The proof I like most is the one that starts with A&B on opposite sides of a diameter. Once you prove that, you can prove the other two cases you have quickly.

[@darshnavijay4339]

Best explanation

[@qqqquito]

Picking a point on the minor arc AC is still good. In which case, the central angle AOC is a "reflex angle", and the inscribed angle ABC is an obtuse angle and is half of the reflex angle AOC.

[@yaleng4597]

our school requires us to write angle at centre twice angle at circumference

[@abhivish2017]

Nice explanation sir.....

[@debrajbanerjee9276]

What is the integral of sqroot(sinx) from 0 to pi?

[@bilalabbad7954]

The geometry is incredible