a 12 inch tile is 12 in x 12 in = 1 ft x 1 ft = 1 square foot.
5 ft 6 in = 5.5 ft, and 5 ft 8 in = 5 2/3 ft,
so 5.5 * (5 2/3) = (31 1/6) square feet, so you would think 32 tiles should be enough.
For the 5.5 dimension, you will use 5 full tiles and 1/2 tile for each row.
If you cut the tile in half, there will be a little waste, but maybe you can get by with that or not.
You will have 5 2/3 rows, but that extra 1/3 cannot be used elsewhere, so you have 6 rows of 5 1/2 = 33 tiles, or if you need extra on cutting the 1/2 tiles:
6 rows of 6 tiles = 36 tiles. You did not say if the tiles were spaced with grout or butt up next to each other, but 36 will be enough.
6.75 Tiles
75 tiles would do it (a 12*12 inch time = 1 square foot) but you need 10% over this for waste so you need to get 83 tiles.
342 of them.
A 12 inch by 12 inch tile is 1 ft by 1 ft, which is 1 square foot. So you would need 120 tiles.
Each tile is 12 inch x 12 inch = 1 foot x 1 foot = 1 square foot. To cover 240 square feet you would need 240 tiles
6.75 Tiles
400
75 tiles would do it (a 12*12 inch time = 1 square foot) but you need 10% over this for waste so you need to get 83 tiles.
342 of them.
5,290 Pieces
A 12 inch by 12 inch tile is 1 ft by 1 ft, which is 1 square foot. So you would need 120 tiles.
first put both in terms of the same mesurment. tiles in inches, patio in inches. patio is 240 by 360 inches. how many tiles will fit in the 240 inch measurement? 15 how many tiles will fit in the 360 inch measurement? 22.2 so you call it 23. 23X15=345 tiles you will need in a 20x30 area.
Each tile is 12 inch x 12 inch = 1 foot x 1 foot = 1 square foot. To cover 240 square feet you would need 240 tiles
It takes 4 6x6 inch tiles to cover a square foot. You will need 180 tiles, plus some for spoilage and mistakes.
You would need 138 tiles to cover 115 square feet with 12-inch tiles. To calculate this, divide the total square footage (115) by the area of one tile (1 square foot for a 12-inch tile). So, 115 (sq ft) / 1 (sq ft per tile) = 115 tiles.
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.