Question

The perimeter of a rectangular garden is 240 feet. If the length of the garden is 69 feet, what is its width?

Answer 1

Perimeter of rectangle:
`P=2a+2b`

Put in data given
`a=69` (height) and
`P=240` (perimeter)

`240=2*69+2b`

Now solve for b (width).

`2b=240-2*69`

`b=(240-2*69)/(2)=\boxed{51}`

It's width is 51 feet. Hope this helps.

r3t40