Two angles of a triangle are equal and the third angle is greater than each of those angles by 30°.
Let x, x, x + 30° be the angles of a triangle.
Sum of all angles in a triangle = 180°
x + x + x + 30° = 180°
3x + 300 = 180°
3x = 150°
or x = 50°
And x + 30° = 50° + 30° = 80°
Answer: Three angles are 50°, 50° and 80°.