Question

Find the angles which is equal to its supplement.

Answer 1

Let the measure of the required angle be x^o.

We know that, sum of measures of supplementary angle pair is 180^o.

Then,

⇒ x + x = 180^o

⇒ 2x = 180^o

⇒ x = 180/2

⇒ x = 90^o

Hence, the required angle measure is 90^o.