Answer:
54 feet
Explanation:
We're looking for the perimeter, which is the sum of the sides. This will tell us how many feet he needs.
Perimeter = s + s + s = 6 + 6 + 6 = 18 yards
So he needs 18 yards! Convert that to feet. Keep in mind that because feet is a smaller unit, we should have more feet when we convert from yards!
He needs 54 feet of fencing.