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ABC is an isosceles triangle inscribed in a circle of radius `rdot` If `A B=A C` and `h` is the altitude from `A` to `B C ,` then triangle `A B C` has perimeter `P=2(sqrt(2h r-h^2)+sqrt(2h r))` and area A= ____________ and = __________ and also `("lim")_(xvec0)A/(P^3)=______`

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The correct Answer is:
`1/(128r)`
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