Question 540907
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.