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An angle is 30° more than its complement.
Find the angle.

Class 7Complementary and Supplementary AnglesLines and Angles

A54
B60
C66
D120

Step-by-Step Solution

Let the angle be

x

, complement is 90° −

x

. Then

x

= (90° −

x

) + 30°, so

2 x = 120

°,

x = 60

°.

Answer: B) 60

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