1.

In a quadrilateral, ∠A = ∠B = 75° and ∠D = 110°, find ∠C.

Answer»

The ANGLE SUM of a QUADRILATERAL = 360°∠A = 75°∠B = 75°∠C = x°∠D = 110°∠A + ∠B + ∠C + ∠D = 360°75° + 75° + x° + 110° = 360°260° + x° = 360°x = 360° - 260° =100°Therefore ∠C = 100°Hope this HELPS...



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