1003108908

Level: 
Project ID: 
1003108908
Accepted: 
1
Clonable: 
0
Easy: 
0
What is the radius of a circle inscribed in a square, if the area of the square is given by the expression $\int\limits_1^6(6-x)\,\mathrm{d}x$ ?
$\frac{5\sqrt2}4$
$3\sqrt2$
$2\sqrt2$
$\frac{7\sqrt2}2$