The width of a rectangle is one third of the length. If the perimeter is 96 cm, what is the width?

1 Answer
Mar 18, 2017

w=12

Explanation:

Let w be the width and l the length.

Then

1) w=1/3l->l=3w
2) 2(w+l)=96->w+l=48

Let's substitute l=3w in w+l=48 and get:

w+3w=48->4w=48->w=12