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Rohan notices that for a certain angle, the supplement is exactly three times the complement.
Find the angle.

Class 7Pairs of AnglesLines and Angles

A41
B49
C90
D45

Step-by-Step Solution

Let the angle be

x

. Supplement

= 180 - x

, complement

= 90 - x

. Given

180 - x = 3 (90 - x) = 270 - 3 x

, so

2 x = 90

and

x = 45

deg.

Answer: D) 45

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