UPTET Feb 2016,p1; Q92
0. The supplementary angle of an angle is three times of its complementary angle, then the angle is
- Option : C
- Explanation : Let the required angle be x.
Then, (180° - x) = 3 x (90° - x)
180° - x = 270° - 3x
2x = 90°
x = 45°
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