# Solution - In an Equilateral Triangle Abc, D is a Point on Side Bc Such that Bd = 1/3bc . Prove that 9 Ad^2 = 7 Ab^2 - Pythagoras Theorem

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#### Question

In an equilateral triangle ABC, D is a point on side BC such that BD = 1/3BC . Prove that 9 AD2 = 7 AB2

#### Solution

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#### Reference Material

Solution for question: In an Equilateral Triangle Abc, D is a Point on Side Bc Such that Bd = 1/3bc . Prove that 9 Ad^2 = 7 Ab^2 concept: Pythagoras Theorem. For the course CBSE
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