The answer will depend on the shape of the area that you wish to cover. If it is circular, or irregular, you will need to cut or trim a lot of tiles and this will result in significant wastage. If the area is of ideal shape, you will require 173 tiles.
113 tiles
55 tiles
297 16x16-inch tiles.
18 10x10-inch tiles.
125 16-inch tiles.
236 18-inch tiles.
49 tiles will cover the are, with 1 inch strips spare
5,184 2-square-inch tiles are needed.
1296 Tiles
270 tiles exactly.
Depends on the size of the tiles.
56 tiles to cover 224 square feet.