Q. 15
The measure of an A. 36°
B. 144°
C. 16°
D. 64°
Answer :
Let one angle be x and the other angle 4x
Since the two angles are supplementary, hence
x + 4x = 180°
⇒ 5x = 180°
⇒ x = 36°
Measure of angle = 4x = 144°
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