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

1 Answer
Jul 27, 2018

W = 12cm
L = 36cm

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 = 12cm

and L = 3*12 = 36cm