Question

proove that sum all angles of a triangle is 180deg..

Answer 1

Given : ∆ABC
To proof : ${\angle}A+ {\angle}B+{\angle}C$=180°
Proof : ....... (pls see attachment ⬆⬆⬆⬆)

HOPE IT HELPS !
PLS MARK BRAINLIEST !
DON'T FORGET TO FOLLOW !
✨☺✨