The area of a parallelogram of dimension 18 cm x 12 cm is 144 sq cm. The height of this parallelogram along the longer side is
12 cm
8 cm
18 cm
9 cm
Construct a traingle of sides 5 cm, 8 cm, 12 cm and then construct a parallelogram whose area is equal to area of that triangle and one of whose angles is 60∘. The dimensions of such parallelogram are: ___ (approximately).