Question

2) Two angles of a triangle are equal.
Find the measure of each of the
equal angle if the third angle is 25º.​

Answer 1

we know that,

sum of the interior angles of the triangle is 180°

Given that,

Two angles of the triangle equal.

Let that angle as x.

so,

x+x+25°=180°

2x+25°=180°

2x=180°-25°

2x=155°

x=77.5°