18 ft X 18 ft =324 sq ft
The answer depends on the measurement units used for 18x18.
118
start with 38 tiles.
To calculate the square footage of an 18x18 tile, you multiply the length by the width. Thus, 18 inches multiplied by 18 inches equals 324 square inches. To convert square inches to square feet, divide by 144 (since there are 144 square inches in a square foot). Therefore, an 18x18 tile covers 2.25 square feet.
22.2 tiles so buy 23 tiles.
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
18 x 18 feet = 324 square feet 18 x 18 inches = 2.25 square feet
118
288
67 tiles.
12...