Question 7Inside square $ABCD$ with side $s,$ quarter-circle arcs with radii $s$ and centers at $A$ and $B$ are drawn. These arcs intersect at a point $X$ inside the square. How far is $X$ from side $CD?$$\tfrac12s(\sqrt3+4)$$\tfrac12s\sqrt3$$\tfrac12s(1+\sqrt3)$$\tfrac12s(\sqrt3-1)$$\tfrac12s(2-\sqrt3)$