Question

1. The ratio of the measures of two supplementary angles is 2:3.What is the measure of the smaller angle?

Answer 1

Explanation:

Let the smaller angle be 2x and the larger angle be 3x

`2x+3x=180`°( as the angles are supplementary)

⇒
`5x=180`°

⇒x=36°

So the smaller angle is
`2x=72`°