In an equilateral ΔABC,AD⊥BC. prove that AD2=3BD2

1.	In an equilateral ΔABC,AD⊥BC. prove that AD2=3BD2
Answer» In an equilateral $Δ A B C, A D ⊥ B C$ . prove that $A D^{2} = 3 B D^{2}$

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