Question

one of the angle of a triangle is 80 degrees the other two angle are equal find the measures of these angles

Answer 1

80+2x =180
x=50
sum of angles of a triangle is 180

Answer 2

Let the other two angles be x

Then x+x+80=180

2x+80=180

2x=100

x=100/2=50

Two angles are of 50°