In quadrilateral

MATHEMATICS · Subjective · CBSE · Mathematics · Quadrilaterals · Quadrilaterals

Problem

In quadrilateral EFGHEFGH, the opposite angles are ∠E=(4x+20)∘\angle E = (4x + 20)^\circ and ∠G=(7x−10)∘\angle G = (7x - 10)^\circ. For what value of xx will EFGHEFGH be a parallelogram?

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