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In a Quadrilateral ABCD, ∠A + ∠B = 200° then ∠C + ∠D = ……………… A) 110° B) 180° C) 160° D) 300° |
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Answer» Correct option is (C) 160° \(\because\) Sum of all angles in a quadrilateral is \(360^\circ.\) \(\therefore\) In quadrilateral ABCD, \(\angle A+\angle B\) \(+\angle C+\angle D\) \(=360^\circ\) \(\Rightarrow\) \(200^\circ\) \(+\angle C+\angle D\) \(=360^\circ\) \((\because\angle A+\angle B=200^\circ)\) \(\Rightarrow\) \(\angle C+\angle D\) \(=360^\circ-200^\circ=160^\circ\) Correct option is C) 160° |
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