Question

In triangle ABC, AB=AC and angle B = 4 angle A, find the measure of each of the angles of triangle.​

Answer 1

Step-by-step explanation:

A + B + C = 180° ( for every triangle)

AB = AC

=> angle ACB = angle ABC( opposite angles of equal sides are equal )

=> C=B

=> A+2B = 180°

B =4A ( given)

=> A+8A= 180°

=> 9A = 180°

=> A = 20°

B = 80°

C=80°

Answer 2

this is solution for your question.