the length of a rectangle is twice as long as the width. the perimeter of the rectangle is 60 ft. what are the dimensions of the rectangle?

Question

the length of a rectangle is twice as long as the width. the perimeter of the rectangle is 60 ft. what are the dimensions of the rectangle?

Answer 1

The formula for perimeter is the sum of

twice the width and twice the length, so

the formula would be:

Perimeter = 2W + 2L

 

In this problem:

Width is unknown (x)

Length is twice the width (2x)

and Perimeter = 60, so to set it up:

60 = 2x + 2(2x)

60 = 2x + 4x

60 = 6x

x = 10

Width = 10; Length = 20