In a quadrilateral ABCD, if AB is longest side and CD is shortest side.Prove that angle C is greater than angle A and Angle D is greater than angle B.

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- Jun 27th 2014, 11:00 AMprabhatQuadrilateral:Help me guys,pls solve this question.
In a quadrilateral ABCD, if AB is longest side and CD is shortest side.Prove that angle C is greater than angle A and Angle D is greater than angle B.