Question

In triangle ABC, AB=AC and <B=4 <A. What is the measure of each angles of the 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

Answer:

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

AB=AC

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

C=B

A+2B=180degrees

B=4A(given)

A+8A=180 degrees

9A=180 degrees

A=20 degrees

B=80 degrees

C=80 degrees

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