Finding perimeter

Question

The length of a rectangle is twice as width if the perimeter of the rectangle is 60 cm find its area

Answer 1

First find the length and width

L=2w

W=w

Perimeter=2l+2w

60=2(2w)+2w

60=4w+2w

60=6w

w=10

l=20

Area=length x width

a=20x10

a=200