Question 922446
 1. What is the exact area of the square that the circle does not cover?
s = length of a side of the Square, r = radius of the Circle
{{{A[square] - A[circle] = s^2- pi*r^2}}}  

2. Find the area of a square whose sides are all tangent to the circle. 
r = s/2 
s = 2r
 {{{A[square] = (2r)^2}}}
 *[illustration 275px_Inscribed_circles_svg.png].