Answered

the length of a rectangle is twice it's width.The perimeter is 60 ft.Find it's area

Sagot :

Let width be x
     lenght = 2x

Perimeter = 60
P = 2(W) = 2 (L)
 60  = 2(x) + 2(2x)
 60 = 2x + 4x
 60 = 6x
  60/6 = 6x/6
   10 = x

Width is 10 ft.
Length is 2(10) = 20 feet

Find the Area of rectangle
Area = (L) (W)
Area = (10 ft.) (20 ft.)
Area = 200 squared ft.