Question

A rectangle has a perimeter of 82 feet, and the length is 21 feet longer than the width. Find its dimentions.?

Answer 1

`l=31` feet
`w=10` feet

Explanation:

`4m+42=82`
`4m=82-42`
`4m=40`
`m=40/4`
`m=10`

`10+21=31`

`l=31`
`w=10`

Hope this helps! :)