Question

In an isosceles triangle ABC, if AB = AC and exterior angle C measures 140 degrees, the measure of three angles will be..

Answer 1

Answer:

80°,40°,40°

Step-by-step explanation:

140°+ interior angle of C= 180

so interrior angle C=180-140

C=40°

triangle is isosceles and AB=AC

so angle ABC= angle ACB

Answer 2

Do refer the figure herewith