The length of a rectangle is twice its width. If the perimeter of the rectangle is 60m, how do you find its area?

1 Answer
Jul 30, 2018

200m^2

Explanation:

Let x be the width of the rectangle
Then 2x is the length of the rectangle

The perimeter of the rectangle is equal to 2times"length"+2times"width"

ie 2(2x)+2(x)=60 (Perimeter of rectangle is 60)

4x+2x=60
6x=60
x=10

That means that the width of the rectangle is 10 and the length of the rectangle is 20.

The area of the rectangle is equal to "length"times"width"=10times20=200