I need help with this and an explanation please ASAP!!!!!!!!!
![I need help with this and an explanation please ASAP class=](https://us-static.z-dn.net/files/d1e/fb91fd1ee25dde708298c0059a156872.png)
[Assuming the backyard is square]
The area is 225 sq ft. That means each side length of the backyard is 15 ft, because 15 x 15 is 225. Then, it asks for the perimeter. All the side lengths are the same, 15ft + 15ft + 15ft + 15ft = 60ft.