Let the length of the rectangle be L and the width be W.
Given that the length is twice the width, Then :
L = 2W .....(1)
But we know that the perimeter is 36.
==> 2L + 2W = 36
==> 2L + L = 36
==> 3L = 36
==> L = 36/3 = 12
==> W = 12/2 = 6
Now we will calculate the area:
==> A = L W = 12 6 = 72 square feet.
Then the area of the rectangle is 72 square feet.
I am 100% sure that that would be the answer!!
have fun!!1
