The measure of two complementary angles are in the ratio 4:1

Question

what is the measure of the smaller angle.

Answer 1

Sum of the complementary angles is 90.

The ratio is 4:1

4x+x = 90

5x = 90

Divide to each side by 5.

x = 90/5

x = 18

4x = 72

The angles are 18, 72.

Smaller angle is 18.