The area of a rectangular field is 96m2. The length of one side is12m. The farmer needs to know its perimeter to work out how much fencing will be needed.

Answer 1

the other side is 96/12 = 8

So, now you know both sides, and can easily figure the perimeter...

Answer 2

A = LW
96 = 12w
8 = W

P = (2 * 12) + (2 * 8)
P = ________ meters