Depends on how many are in each box?
The diagonal of an 18x18 tile is 18*sqrt(2) = 25.46 units.
18 squared is 324 182=324
102.22 tiles because each tile is 2.25 sq.ft. 230 / 2.25 =102.22 so really 103 tiles.
It depends on the units used for measuring the tiles. Obviously, the number of 18 inch x 18 inch tiles required will not be the same as 18 cm x 18 cm tiles. And if there were 18 yard x 18 yard tiles, you would need only 1.
18x18 is 324
The answer depends on the measurement units used for 18x18.
it will take 54 ,18x18 pavers. which you will have to cut some on the edge.
144/2.25=64. 18x18 tile cover 2.25 sq ft area.
18x18 what? 18 feet x 18 feet? 18 microns x 18 microns?
18 multiplied by 18 is 324.
18(Check:18x18=324)
60
3
2.25 square feet
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.
Ok I'll guess 18x18 = 18x9x2 = (18x9)x2 = 162x2 = 324 or = 18x6x3 = (18x6)x3 = 108x3 = 324 same answer either way