The length and breadth of the rectangle are x cm, and (x - 4) cm respectively whose perimeter of the rectangle is 40 cm. If the length of the rectangle is equal to the one of the diagonal of the rhombus whose area is 36 cm2. Find the length of the other diagonal of the rhombus.
1
6 cm
2
7 cm
3
12 cm
4
9 cm
5
None of these