Question

the area of a rhombus is 144 sq. cm and one of its diagonals is dounle the other . The length of the longer side is

Answer 1

Area of rhombus = 144 sq cm (and not cm as stated in the question).

One Diagonal = d1

Second diagonal = 2d1

Area = 144 =d1*2d1/2 = di^2, or

di = 12 cm.