The perpendicular from A on side BC of a ΔABC intersects BC at D such – InterviewSolution

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1.	The perpendicular from A on side BC of a ΔABC intersects BC at D such that DB = 3CD .Prove that 2AB2=2AC2+BC2.
Answer» The perpendicular from A on side BC of a $Δ A B C$ intersects BC at D such that DB = 3CD .Prove that $2 A B^{2} = 2 A C^{2} + B C^{2}$ .

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