It depends on whether the tiles are 18 cm * 18 cm, or 18 in * 18 in or any other units of linear measurement which the question does not specify.
you need to know how wide the floor is in addition to how long. Number of tiles is lenght x width
64
the answer is 40 square yards
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
12" x 12" = 1' x 1' = 1 square foot per tile12' x 6' = 72 square feet72/1 = 72 tiles.
It should take about 825 1 foot square tiles to cover a floor with those dimensions. This assumes roughly a 10% waste factor.
234
240 square tiles are needed
you need to know how wide the floor is in addition to how long. Number of tiles is lenght x width
A tile measuring 2 foot by two foot (which, incidentally, is an unusually large tile) has an area of 4 square feet, so it would take 100 such tiles to cover a 400 square foot floor.
64
640
the answer is 40 square yards
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
12" x 12" = 1' x 1' = 1 square foot per tile12' x 6' = 72 square feet72/1 = 72 tiles.
Look at your kitchen floor. Many linoleum floor tiles are 1 square foot in area. One foot on each side. ■
You would need 56 tiles to do the floor