If you mean 12x12 "inches", then each tile covers 1 square foot. We trust you can take it from there.
Well, sweetheart, 11 multiplied by 11 is 121, and 12 multiplied by 12 is 144. It's basic math, darling, nothing to lose sleep over. Just remember those results next time you're feeling the need to flex your multiplication skills.
If 12x12 is 144... There would be 144 tiles in a box right?
If you're talking floor tiles as opposed to wall tiles and by 12x12 you mean they are 12 inches square, then the answer is 300. Because each tile is one square foot and a 15'x20' room is 300 square feet. Simple, eh?
A gross is a dozen dozens (12X12) why it is called a gross i couldn't find out.
12X12 12X12
12x12= = 144
144
72
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
12x12
12x12 - 2000 was released on: USA: April 2000 (Sonoma Film Festival)