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प्रश्न
If two supplementary angles are in the ratio 2 : 7, find them.
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उत्तर
Ratio between two supplementary angles = 2 : 7
Let the angles be 2x and 7x
∴ 2x + 7x = 180°
⇒ 9x = 180°
⇒ x = `(180°)/9` = 20°
∴ First Angle is 2x = 2 × 20° = 40°
Second Angle is 7x = 7 × 20° = 140°
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