• Polygons are closed plane figures bounded by three or more line segments that do not intersect.  The line segments are called sides.  Polygons are named by the number of sides they contain.
  • There are regular and irregular polygons.
  • Regular polygons have all sides and all angles equal.  The figures in red below are examples of regular polygons.
  • Irregular polygons are polygons whose sides are not all the same length or whose interior angles do not all have the same measure.  The figures in green below are examples of irregular polygons.


Click on the links below to practice and learn more about polygons.

Related Links

  • Irregular Polygons This is an interesting website because you can grab the vertex of a polygon and stretch it in any way to make the shape change.