It would help to know the size of the tiles!
That is 90 square feet and that should require 90 12in tiles.
It depends on whether the tiles are 18 inch * 18 inch or 18 cm * 18 cm, etc. And also on whether the room is 10ft *10ft or 10 yards*10 yards or 10 metres*10 metres etc.
450
210 tiles
It would help to know the size of the tiles!
30
That is 90 square feet and that should require 90 12in tiles.
150
It depends on whether the tiles are 18 inch * 18 inch or 18 cm * 18 cm, etc. And also on whether the room is 10ft *10ft or 10 yards*10 yards or 10 metres*10 metres etc.
450
144 tiles
120 of them.
square feet is best understood (for me) in terms of tiles. one tile is a foot long and a foot wide. If you tile a floor with these tiles and you notice that one side of the floor (lenghtwise) is fifteen tiles long and the other side is fifteen tiles across. this means that the room is 15X15 tiles. since our handydandy tiles are 1X1 (recall one foot by one foot) this means that our floor is actually 15X15 square feet. >> don't forget that Ft. squared is math terminology for ft. X ft. (or 15ft.x 15ft.) The dimensions of a room that is 15ft. sq. would probably be around 4X4ft. that is ittsybittsy
10ft X 10ft = 100sq ft /9 = 11.11 sq yds
210 tiles
150 ft^2