Question

In an isosceles triangle, the base angles are equal and the vertex angle is 80°. Find the measure of the base angle.

Answer 1

Step-by-step explanation:

Let the base angle is x.

Another base angle =x.

Angle sum property of triangle

2x+80=180

2x=180-80

2x=100

x=50

First base angle=50=second base angle

Answer 2

Answer:

let the base angles be x°

according to the question

x+x+80°=180°

2x+80°=180°

2x=180°-80°

2x=100°

x=50°