To calculate the number of 12x12 tiles needed for a 10x10 room, you first need to find the area of the room. A 10x10 room has an area of 100 square feet. Since each 12x12 tile covers 1 square foot, you would need 100 tiles to cover the entire room.
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Well, isn't that just a happy little question! For a 10x10 room, you'll need enough 12x12 tiles to cover the entire floor. Since each tile covers an area of 12x12 square inches, you'll need to calculate the total square footage of the room and then divide by the area of each tile to find the number needed. Just remember, there are no mistakes in art, only happy accidents!
The units of measurement for neither the tile nor the room are given. I can therefore assume that it is a 10 ft x 10 ft room and a 12 ft by 12 ft [carpet] tile. So answer: less than 1 tile.
If you mean 20 in x 20 in tiles, the 240 sq ft room is 240 x 144 sq in = 34560 sq in. each tile is 20 x20 = 400 sq in tiles needed are 34560/400 = 86.4 tiles, say 90 tiles
Couple of ways to do perform this task: (1) The area of each tile is 18 x 18 inches = 324 square inches. Calculate the area of the room in Inches: 9 ft (108 in) x 12 ft (144 in) = 15552 square inches. Take the area of the room, divided by the area of each tile: 15552 sq in/ 324 sq in = 48 tiles. (2) Determine how many tiles you need to span the width of the room. 9 feet divided by 18 inches is the same as saying 9 feet divided by 1.5 feet = 6 tiles across Determine how m any tiles you need to span the length of the room. 12 feet divided by 18 inches is the same as saying 12 feet divided by 1.5 feet = 8 tiles across 6 tiles wide x 8 tiles long = 48 tiles.
Perimeter = 12+12+12+12 = 48
150
Area to be covered: 15 x 16 = 240 square units Area of tile = 12 x 12 = 144 square units Number of tiles required = 240/144 = 1.66... . So 2 tiles will be sufficient.