Question

Elise built a rectangular vegetable garden that is 9 feet long and has an area of 72 square feet.

What is the perimeter of Elise’s vegetable garden?

Answer 1

A=LW

W=A/L

P=2L+2W, using W found above we have:

P=2L+2A/L

P=(2L^2+2A)/L, and we are told that L=9ft and A=72ft^2 so

P=(2*81+2*72)/9

P=34ft

Answer 2

The other length is 8 (8*9=72)

8+8+9+9= 34

The perimeter is 34 feet