Question

If one angle of a triangle is equal to the sum of the other two angles , then the tringle is-

Answer 1

Let the angles be x, y, z.

Given, x = y + z.

By Angle sum property,

x + y + z = 180

x + x = 180

2x = 180

x = 90°

As one of the angles is 90° , the triangle is Right angled.