Mathematics, 29.05.2020 13:57 emanueln
Given: ABCD is a quadrilateral, BC║AD, m∠ A = 90°
Prove: BD^2 − AC^2 = AD^2 − BC^2
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Answers: 3
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Given: ABCD is a quadrilateral, BC║AD, m∠ A = 90°
Prove: BD^2 − AC^2 = AD^2 − BC^2
...
Prove: BD^2 − AC^2 = AD^2 − BC^2
...
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