| Throughout history
          geometric shapes have been used as decorative motifs. Although many
          objects such as containers, fabrics, doors, windows and other bits of
          architecture have all been decorated using regular geometric designs
          we are going to focus specifically on walls and floors. 
          
          
           Walls and floors are
          decorated using mosaics. A mosaic is the complete covering of a
          plane area with pieces usually called floor tiles that fit together
          exactly without covering each other or leaving any gaps between them.
          There is an unlimited number of ways to cover a plane and we are going
          to look at some of the more simple ones. |