Question

The length of a rectangle is twice its width.
If the perimeter of the rectangle is 48ft , find its area.

Answer 1

Perimeter of rectangle = P = 48ft
Length = 2w
Width = w

Perimeter of rectangle = 2(Length+Width)
48=2(2w+w)
48=2(3w)
48=6w
48/6=6w/6
8=w
w=8ft



Length = 2w = 2(8)=16ft
Width = w = 8ft

Area of rectangle = Length * Width
Area of rectangle = 8 * 16
Area of rectangle = 128 square feet.