A quadrilateral ABCD is drawn to circumscribe a circle (as shown in figure). Prove that AB + CD = AD + BC.

1 Answer

answered Mar 16, 2018 by santoshjha (25,550 points)
selected Mar 27, 2018 by Vikash Kumar

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A quadrilateral ABCD is drawn to circumscribe a circle (as shown in figure). Prove that AB + CD = AD + BC.

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