" 3.A point "D" is on the side "BC" of an equilateral "/_ABC" such that "DC=(1)/(4)BC" .Prove that "AD^(2)=13CD^(2)

A point D is on the side BC of an equilateral triangle ABC such that DC=(1)/(4)BC. Prove that AD^(2)=13CD^(2)

In an equilateral ABC, E is a point on BC such that BE= (1)/(4)BC . Prove that 16AE^(2)= 13AB^(2) .

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

If E is a point on side r:A of an equilateral triangle ABC such that BE bot CA , then prove that AB^(2) +BC^(2) +CA^(2) = 4BE^(2) .

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

D is a point on the side BC of ABC such that /_ADC=/_BAC. Prove that (CA)/(CD)=(CB)/(CA) or,CA^(2)=CB xx CD

If D is a Point on the side BC of a Delta ABC such that AD bisects angleBAC . Then

If D is a Point on the side BC of a Delta ABC such that AD bisects angleBAC . Then

In an equilateral triangle ABC, D is a point of BC such that 4BD = BC. Prove that 16AD^(2)=13BC^(2) .

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