5,184 2-square-inch tiles are needed.
1540
647
18..
216- 2x2
6' x 9' (54 square feet) = 6 square yards of tiles needed.
240 square tiles are needed
5,184 2-square-inch tiles are needed.
236 18-inch tiles.
Each tile covers 4 square feet. Which means you need 200 tiles to cover 800 square feet, plus spoilage.
1540
968
647
18..
616 3x6 inch tiles are needed to cover exactly 77 square feet.
216- 2x2
If the tiles are 12 inches square... 8352 tiles ! However if they're 12 feet square... 58 tiles