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?
For area measurements, you multiply the length by the width. Here the calculation gives you an answer of 240 square feet. Each tile covers 4 square feet, so you would need 60 tiles plus spoilage.
You calculate the sqft of the room, a sqft is still a sqft no matter what the tile dimensions are
17 x 20 = 340 square feet
10 ft x 20 ft room = 200 square feet
560 square feet. This is an easy calculation - just multiply the length by the width. The answer is the number of square feet.
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?
300 square feet. To calculate square feet simply multiply length by width - the result is the area in square feet.
There are 12 times 20 = 240 square feet
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?
18 feet is 5.4864 meters (says google, just type "18 feet in meters") 20 feet is 6.09600 meters 5.4864 * 6.09600 = 33.4450944 meters squared (AKA square meters).
For area measurements, you multiply the length by the width. Here the calculation gives you an answer of 240 square feet. Each tile covers 4 square feet, so you would need 60 tiles plus spoilage.
First we need to calculate the square footage of the room. 15*20 = 300 square feet Now we need to know how many square feet each tile covers. 20" = 1.667~ square feet 1.6672 = 2.78 square feet. Now we divide the area of the tiles into the area of the room. 300/2.78 = 108 tiles. This gives the exact number of tiles you need mathematically. Realistically you need to account for cutting and breaking. It's safe to round that up to 120 tiles.
Multiply the two dimensions to get the area. In this case the calculation gives you 80 square feet.
160ft