Two supplementary angles are in ratio 4 : 5, find the angles,
Two supplementary angles are in ratio 4 : 5, find the angles,
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Let angles are 4x & 5x.
∴ Angles are supplementary
∴ 4x + 5x = 1800
⇒ 9x = 1800
⇒ x = 180o/9 = 20o
∴ Angles are 4 × 200 , 5 × 200 ⇒ 800 & 1000
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