Inradius, perimeter, and area | Special properties and parts of triangles | Geometry | Khan Academy

[@Levantinelyjan]

that's interesting never saw it that way

[@taejunchang124]

I didn't learn this in class but this is making me smarter. Haha

[@siddharthrajan616]

I Love Khan academy and Maths😀😀

[@rohitmalik776]

Hope in Maths: Restored!

[@BewKoofmath]

Thank u so muchh sir

[@kinyutaka]

It's not just triangles that do this. All regular polygons have the same correlation. A=P*r/2

[@cosmosXverse]

Anyone in 2019

[@heraeditz6286]

Very nice...

[@franticnine6885]

1:26, Illuminati confirmed XD

[@georgikalachev3704]

I would like to ask a question. I couldn't understand one task in my additional exercises . You have a right angled triangle with side 12 cm and another one that is 5 cm none of this 2 is the hypotenuse . How long is the inner radius is ? I'm trying to find the answer for ages ... Thank you in advance :D

[@juancamilosabogal6395]

Answer is 2

[@cosmosXverse]

See area = 30, perimeter =30 now put this in formula.. U get r=2

[@ainsyaf4791]

is this same with vivian's theorem?

[@phelanbennett771]

yes

[@SethuIyer95]

lolz! superb

[@rokeyaakter3067]

Why does the vedio become green?