Question

The ratio of the measure of two supplementary angles is 15:21. What is the measure of the smallest angle?

Answer 1

75

Explanation:

The measure of two supplementary angles = 15:21

The angles are 15x , 21x

15x + 21x = 180 {Supplementary}

36x = 180

x = 180/36

x = 5

Smallest angle = 15 * 5 = 75