# Teaching Geometry - Chapter 6: Circles

For our final discussion of two dimensional geometry, we'll discuss the properties of circles which you can think of as the "limiting case" of a polygon, i.e. as a polygon with "infinitely" many sides. |

## Technologies UsedWe try to limit the technologies that are used in each classroom to the minimum required to get the job done. The combinatorics classroom uses only JavaScript which all modern browsers support. | ## Source MaterialThe material in this classroom is substantially identical to |