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In the given figure, ABCD is a parallelogram and X, Y are points on diagonal BD such that DX = BY. Prove that CXAY is a parallelogram.

In the given figure, ABCD is a parallelogram and X, Y are points on diagonal BD such that DX = BY. Prove that CXAY is a parallelogram. Quadrilaterals, R.S. Aggarwal Mathematics Solutions ICSE Class 9.

Rectilinear Figures

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Answer

Given,

ABCD is a parallelogram

DX = BY

Diagonals of ∥ gm bisect each other.So,

OA = OC and OD = OB

Also,

OD - DX = OB - BY [DX = BY]

OX = OY

∴ Diagonals of quadrilateral CXAY bisect each other, CXAY is parallelogram

Hence, proved that CXAY is a parallelogram.

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