Question

The length of a rectangle is 3 times the width. The perimeter is 96 cm. How do you find the width and length?

Answer 1

`W = 12`cm
`L = 36`cm

Explanation:

Perimeter of rectangle `P= 2*W+2*L`

We are told `L=3W`

and `P=96`

so `96 = 2* W+2*3*W`

`8W = 96`

so `W = 96/8 = 12`cm

and `L = 3*12 = 36`cm