Question

if triangle ABC if ab is equal to AC and the angle b is equal to 20 degrees then the measure of angle A is​

Answer 1

in triangle ABC

AC=AB

ANGLE B=20

so angle C also equal to 20 as AC =AB

SO A.T.Q

20 +20+X=180

40+X=180

X=180-40

X=140....the value of x=140

hope it is helpful