Question

∆ABC is isosceles with AB=AC, angle A = 80°. what is the measure if angle B?​

Answer 1

Answer:angle B=50°

Step-by-step explanation:

Answer 2

Answer:

In Isosceles Triangle

AB = AC

So, Angle A = Angle B = x

Sum of angles of triangle = 180°

So,

x + x + 80 = 180

2x = 180 - 80

2x = 100

x = 50°

So Angle B = 50°