400 square yards. This is because there are 9 square feet in a square yard, and there are 3600 square feet of carpet needed to cover the 60' x 60' floor.
The closer you get to a perfect square, the smaller the perimeter. A 6x6 square will have a 24 perimeter. A 36x1 will have the largest perimeter. The area is the same, but the length has 'stretched' to cover a larger perimeter.
The answer will depend on the size of the tiles.
A square yard is = to 9 square feet.
At least 31.77 square yards are needed.
The floor's area is: 1,296 square feet.
The amount of tiles needed to cover a floor will depend on the size of the floor.
348 square feet are 38.666667 square yards.
170/9 = 18.9 square yards
The area of the floor is 1296 square feet.