The ratio of two supplementary angles is 2:1. The difference between these two angles is _____?
- 90°
- 60°
- 120°
- None of these
Explanation
Let the angles be 2x and x.2x + x = 180° (supplementary angles)
3x = 180°
x = 60°
Angles are 120° and 60°.
Difference = 120° - 60° = 60°
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