If AD⊥BC, prove that AB2+CD2=BD2+AC2. [2 MARKS]

1.	If AD⊥BC, prove that AB2+CD2=BD2+AC2. [2 MARKS]
Answer» If $A D ⊥ B C$ , prove that ${A B}^{2} + {C D}^{2} = {B D}^{2} + {A C}^{2}$ . [2 MARKS]

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If $A D ⊥ B C$ , prove that ${A B}^{2} + {C D}^{2} = {B D}^{2} + {A C}^{2}$ . [2 MARKS]

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