12. In a quadrilateral ABCD

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12. In a quadrilateral ABCD, ∠A + ∠D = 90°. Prove that AC^2 + BD^2 = AD^2 + BC^2
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Jul
12. In a quadrilateral ABCD, ∠A + ∠D = 90°. Prove that AC^2 + BD^2 = AD^2 + BC^2 ∠A + ∠D = 90°. Prove that AC^2 + BD^2 = AD^2 + BC^2 12. In a quadrilateral ABCD July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,
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