Yes because it will tessellate
If a tile is a square or rectangle, cut the tile from corner to corner and you will create two triangles.
16
The number of square tiles needed to form a rectangle depends on the dimensions of the rectangle and the size of the tiles. To determine this, you can calculate the area of the rectangle by multiplying its length and width, and then divide that by the area of one square tile. For example, if the rectangle is 4 feet by 3 feet and each tile is 1 foot by 1 foot, you would need 12 tiles to cover the entire area.
A regular octagon cannot tile a flat surface, it needs squares as fillers. An irregular octagon can tile a flat surface alone.
Not really...for tile to be properly set it must be on a hard surface. A carpeted surface will not provide the hard surface needed for tile to properly bond.
How long is the rectangle? If the rectangle is only one tile long, then it will take 20 tiles.
The rectangle is the simplest and most obvious case of a geometrical form that can tile a plane.
It is one surface on a rectangle.
Though people do tile over tile, it's really not recommended. The underlying surface can make or break a tile installation. Preparing that surface is the most important step. So I'd remove the old tile, prepare the surface properly and then install your new tile. This will insure the long lasting beauty of your fireplace tile.
Before installing tile flooring, you need a clean FLAT surface. Tile is not a flexible material so the flat surface ensures the tile will match up correctly. You also need to sand the underneath flooring so that the grout and tile cement will be able to form a cohesive nature with tile and permanently fix the tile to the surface.
Rectangle
rectangle