Question

In ABC, A=Cand B= A+ C. Find the measures of the angles of
the triangle.​

Answer 1

A = C

and B = A + C = 2A

According to the Angle Sum Property.

A+B+C = 180°

A + 2A + A = 180°

4A = 180°

A = 45°

C = A = 45°

C = A = 45°B = 2A = (2*45°) = 90°