# Geometry - Tessellations

You might not think that math has artistic applications, but you would be wrong. Yesterday we posted a video on symmetry, a concept that comes up in art often. Continuing on the same path, today's free Geometry video is on Tessellations. A tessellation is a repeating pattern that completely covers a plane with no gaps or overlaps. Many of us have seen tessellations in art when viewing work by M.C. Escher. They are also very common in nature, from honeycombs to artichokes.  But did you know there are different types of tessellations? There are regular tessellations, which are formed by congruent regular polygons, similar to what you might see with tile walls. Then there are semiregular tessellations, which are formed by two or more different regular polygons, with the same number of each polygon occurring in the same order at every vertex. There are even tessellations that are neither regular nor semiregular. Have no fear; however, as Professor Edward Burger will demonstrate the differences between each and how to identify them over the course of the 4 lectures on today's video. Just make sure you click the forward button to the left of the timestamp to move to the next lecture on the video.