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[" two sides of right angle are "6cm" and "8cm" ,find the "],[" radius of incircle of triangle."],[" In an equilateral triangle "ABC,D" is a point on side "BC],[" such that "BD=(1)/(3)BC" ,prove that "9AD^(2)=7AB^(2)" ."]

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In an equilateral triangle ABC, D is a point on side BC such that BD = (1)/(3) BC. Prove that 9 AD^(2) = 7 AB^(2) .

In an equilateral triangle ABC, D is a point on side BC such that BD = (1)/(3) BC. Prove that 9 AD^(2) = 7 AB^(2) .

In an equilateral triangle ABC, D is a point on side BC such that BD = 1/3 BC . Prove that 9 AD^(2) = 7 AB^(2) .

In an equilateral triangle ABC , D is a point on side BC such that BD = 1/3 BC . Prove that 9 AD^(2)=7AB^(2) .

In an equilateral triangle ABC, D is a point on side BC such that BD =1/3BC.Prove that 9AD^2=7AB^2

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In an equilateral Triangle ABC,D is a point on side BC such that BD=1/3BC . Prove that 9AD^2=7AB^2 .

In equilateral DeltaABC, D is a point on BC such that BD= (1)/(3)BC . Prove that 9AD^(2)= 7AB^(2) .

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