Assume that the tiles are 3 inches by 6 inches, although there is no reason to do that!
Area of each tile = 0.25 ft * 0.5 feet = 0.125 sq feet.
Number of tiles required = Total area to be covered/Area of each tile
= 210/0.125 = 1680 tiles.
That is the mathematical answer. In real life, the number required will depend on the configuration of the area to be tiled. For example, a circular area of 210 square feet will require far more tile cutting than a rectangular one - even fewer if both sides of the rectangle are in quarter of half feet. That then brings into play your tiling skills, wastage etc.
Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
76.6 tiles
67 tiles.
157 18 by 18 tiles are needed to cover 352 square feet.
You will need at least 67 tiles. This will cover 150.75 square feet.
Since a 12x12 tile is one square foot, then 38 12x12 tiles will cover 38 square feet.
Each tile covers 4 square feet. You will need 24.75 tiles to cover the area.
110 tiles
1296 Tiles
5.8
6' x 9' (54 square feet) = 6 square yards of tiles needed.
80
1728
Five tiles will cover 160 square feet so they will cover 100% of 156 square feet with a little excess. A precise coverage will require 4.875 tiles.
16x16 square feet = 256 square feet, so two tiles will suffice.
Multiply the two dimensions to get the area. The calculation will give you 4 square feet for each tile and 100 square feet for 25 tiles.
20