Question

How many feet of chain fence are necessary to

enclose a dog pen that is square and has an area of
144 square feet?

Answer 1

48 feet

Explanation:

Areas of a square is the length times the width. In a square the length and width are the same number because all the sides of a square have the same length.

12 x 12 = 144, so each side of the pen is 12 feet. We want to find the perimeter (the distance around the square). 4(12) = 48