Question

The length of a rectangle is 3ft longer than its width. If the perimeter of the rectangle is 66ft , find its length and width.

Answer 1

The perimeter is 66 and the length is 3ft longer than the width. The width is w and the length is 2(3+w).

For width:

66 = 2w + 2(3+w)

66 = 2w + 6 + 2w

60 = 2w + 2w

60 = 4w

15 = width



For length:

3 + 15 = 18

The length is 18 and the width is 15