Question

A neighbor needs to put up a square fence around her garden to keep the deer out. If the area is 500 square feet, how much fence does she need to buy, rounded to the nearest tenth of a foot? Show your work.
PLEASE SOMEONE HELP ME I WILL GIVE BRAINELIST FOR THE CORRECT ANSWER NO FAKE ANSWERS. IM TIMED

Answer 1

Let's say side length is s. 
s*s = 500, so s = √500.

4 sides needed, total length thus 4*s.

4√500 ≈ 89.4