[" In Figure "3,AD perp BC" and "BD=(1)/(3)CD],[" Prove that "2CA^(2)=2AB^(2)+BC^(2)" ."]

In Figure 3, AD _|_BC and BD=1/3CD . Prove that 2 CA^2 = 2 AB^2 + BC^2 .

In Delta ABC seg AD perp seg BC,DB=3CD Prove that 2AB^(2)=2AC^(2)+BC^(2)

In DeltaABC , seg AD bot seg BC , DB=3CD . Prove that 2AB^(2)=2AC^(2)+BC^(2) .

In DeltaABC , seg AD bot seg BC , DB=3CD . Prove that 2AB^(2)=2AC^(2)+BC^(2) .

In figure,/_B<90^(@) and AD perp BC .Prove that AC^(2)=AB^(2)+BC^(2)-2BC.BD

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

In Delta ABC, "seg" AD bot "seg" BC, DB = 3CD . Prove that: 2 AB^(2) = 2AC^(2) + BC^(2)

In ABC, if AD perp BC and AD^(2)=BD xx DC, prove that /_BAC=90o

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