Question

prove that the sum of a triangle is 180

Answer 1

sum of triangle can never be 180. although sum of angles of triangles is 180.

Answer 2

Prove the sum of the triangle is equal to 180 1st considered a triangle with sides a b c in a triangle ABC + Angle B C A + angle C A b is equal to 180 draw a line a parallel through a and b and draw b through points and Pehle to point a