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The supplement of an angle is 4 times its complement.
Find the angle.

Class 7Complementary and Supplementary AnglesLines and Angles

A120
B54
C66
D60

Step-by-Step Solution

Let the angle be

x

. Supplement = 180° −

x

, complement = 90° −

x

. Then 180° −

x = 4

(90° −

x

), so 180° −

x = 360

° −

4 x

, giving

3 x = 180

°,

x = 60

°.

Answer: D) 60

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