40
The only answer is the trivial answer: 22.5 square feet. The area does not determine thye dimensions of the room. 22.5 square feet could be a room that is circular with a radius of approx 2.68 feet or it could be a room that is 1 mile lonf and only 0.0043 feet = 0.051 inches wide. It could be narrower still!
400 square feet.
16' x 15' = 240 square feet.
A room that is 12 feet by 13 feet is 156 square feet in area
40
20 x 20 = 400 The room has 400 square feet on the floor, 400 square feet on the ceiling, and (80 x height of the room) square feet on the walls.
20" = 2.78 square feet. Now divide the area of the tiles into the area of the room. 140/2.78 = 51 tiles
20x20 = 400 2x4= 8 400/8= 50 needed
The only answer is the trivial answer: 22.5 square feet. The area does not determine thye dimensions of the room. 22.5 square feet could be a room that is circular with a radius of approx 2.68 feet or it could be a room that is 1 mile lonf and only 0.0043 feet = 0.051 inches wide. It could be narrower still!
400 square feet.
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.
525 square feet.
252 square feet.
240 square feet
300 square feet.
162 square feet.