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Suppose the area of a circle with radius r r is larger than the area of a square with side length l l . define a formula that expresses d d, how much greater the area of a circle with radius r r is than the area of a square with side length l l , in terms of r r and l l . (that is, write a formula that expresses d d in terms of r r and l l .)

Answer :

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We know that the area of any circle is  Ac = πr**2The area of the square is As = l**2 
If we substract the Areas, we can know the difference between them

d = πr**2 - l**2

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