The ratio of two complementary angles is 9:1. The difference between these two angles is ______?
- 72°
- 54°
- 45°
- None of these
Explanation
Complementary angles sum = 90°
Let angles be 9x and x
9x + x = 90°
10x = 90°
x = 9°
Angles are 81° and 9°
Difference = 81° - 9° = 72°
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