c++ programming

A programme to compute the area of a circle where the radius is less than 100 square units then your programme should print"the cicle is too small" otherwise it should print"Your circle is big enoughto hold a Quadrate and the area of the quadrate is x"
here how to find the area pf the quadrate .what formula should be used??

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asked by tish
  1. quadrate: a square. So the circle circumscribes the quadrate. That means the diagonal of the square is 2r. Which means each side of the square is r/sqrt2, so the area of the quadrate is .5*r^2 , where r is the radius of the circle.

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