A tessellation is a pattern of a single geometric shape or sometimes more than one regular polygon, that covers an entire plane or area. It is also referred to as "tiling" because it is often used in tiling. Tessellation has been used for thousands of years in art and architectural designs. It is often used in mosaic designs of floors, walls, and windows (tiling). Not every polygon can be used to create tessellations because there is a particular formula to make them work, the sum of the angles around the vertices (points where lines meet) must equal 360 degrees