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If ABC is an isosceles triangles and D i...

If ABC is an isosceles triangles and D is a point on BC such that AD `bot` BC, then

A

`AB^(2) - AD^(2) = BD.DC`

B

`AB^(2) - AD^(2) = BD^(2) - DC^(2)`

C

`AB^(2) + AD^(2) = BD.DC`

D

`AB^(2) + AD^(2) = BD^(2) - DC^(2)`

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