Question

The length of a rectangle is twice its width.

If the perimeter of the rectangle is 60 m, find its length and width.

Answer 1

length = 20m

width = 10m

Explanation:

perimeter = 2 (length + width)

length = 2 * width = 2w

perimeter = 2 (2w +w)

perimeter = 2(3w)

60m = 6w

(divide both sides by 6)

60/6 = w

width = 10m

length = 2w

so length = 2 * 10 = 20m

Answer 2

120 m

Explanation:

.