18 ft X 18 ft =324 sq ft
The answer depends on the measurement units used for 18x18.
118
start with 38 tiles.
22.2 tiles so buy 23 tiles.
18 inches = 1.5 ft, so each tile is 2.25 sq ft, number required = 249/2.25 = 111
2.25 square feet
The answer depends on the measurement units used for 18x18.
324 square feet. Multiply the two dimensions - the result is the number of square feet.
220
It is not clear what is meant by an "18x18 square feet" tile. 18ft * 18 ft = 324 square feet, so that one tile will be more than enough. An 18 inch by 18 inch tile cannot be a 18x18 square feet tile.
10
192 tiles
118
67 tiles.
288
18 x 18 feet = 324 square feet 18 x 18 inches = 2.25 square feet
12...