Question

The measure of two complementary angles are in the ratio 1 : 4. What are the degree measures of the two angles?

A 18° and 72°
B. 22.5° and 67.5°
C. 36° and 144°
D. 45° and 135°

Answer 1

A 18° and 72°

Explanation:

As you know, the sum of two complementary angles = 90

The ratio 1 : 4 = 1 + 4 = 5

So 90/5 = 18

1 x 18 = 18

4 x 18 = 72

The two complementary angles are 18° and 72°

Answer

A 18° and 72°