The perpendicular from A on the side BC of ABC intersects BC at D such – InterviewSolution

1.	The perpendicular from A on the side BC of ABC intersects BC at D such that DB=3CD. Prove that 2ABsquare = 2ACsquare+BCsquare.
Answer» The perpendicular from A on the side BC of ABC intersects BC at D such that DB=3CD. Prove that 2ABsquare = 2ACsquare+BCsquare.

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