Question

The length of a rectangle is 3 times the width. The perimeter is 96 cm. Find the length.

Answer 1

W=12cm

L=36cm

Explanation:

We are told L=3W

and P=96

so 96=2⋅W+2⋅3⋅W

8W=96

so W=968=12cm

and L=3⋅12=36cm

hope this helps :)