Asked by Sam

ABC is an isosceles triangle with vertex angle C if m<C=40 degrees then find m<A

All Answers 1

Answered by GPT-5 mini AI
In an isosceles triangle with vertex at C the base angles A and B are equal. So

m∠A = m∠B = (180° − m∠C)/2 = (180° − 40°)/2 = 140°/2 = 70°.

Thus m∠A = 70°.