Gujarat BoardEnglish MediumSTD 9MathsLines and Angles1 Mark
MCQ
The complement of (90 - a)º is:
A
(90 + 2a)º
B
(90 - a)º
C
aº
D
-aº
✓
Answer
aº Solution: We know that the sum of complementary angles are 90º Let the complementary angle of (90 - a)º be x x + (90 - a)º= 90º x = 90º- (90 - a)º x = 90º - 90º+ aº x = aº.
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