The area of a rectangular park is 10,560 m2. The sum of its one diagonal and the shorter side is 2.2 times its longer side. Its perimeter is 12 m more than that of a square field. What is the length (in m) of each diagonal of the square field?
1
\(108\sqrt {2} \)
2
\(90\sqrt {2} \)
3
\(106\sqrt {2} \)
4
\(100\sqrt {2} \)