Question

If a triangle ABC, if angle C =3angle B and angle B = 2/3 (angle A + angle B) , find angle A, angle B angle C of the triangle.

Answer 1

Answer:

A = 20 B= 40 C= 120

Step-by-step explanation:

C:B = 2:1

B:(A+B) = 2:3

A:B:C = 1:2:6