What is the interior angle sum theorem for polygons

[@X21_STRIKER]

when I say this was the biggest life savor 😭😭😭

[@cupckae1]

Helped me while learning visual proofs of some infinite sums. Thanks Brian

[@TDigitalWorld]

W teacher

[@Y_2_Thought_It]

why is there a pattern tho

[@themixtape440]

math's weird like that (see the golden ratio)

[@rayzornix7308]

haha he actual said a triangle has 3 sides this time cuz in his other video he said a triangle had 4 sides and 4 angles XD

[@brianmclogan]

Sometimes class make me crazy

[@kavyasri_guttula]

excellent👏👏👏👏👏