41. These five irregular deltahedra belong to the class of Johnson solids : convex polyhedra with regular polygons for faces. 42. Because of this property, it is possible to construct with compass and straightedge a regular polygon with 65535 sides. 43. There are no combinations of regular polygons with 4 or more meeting at a vertex that contain a pentagon. 44. A regular polygon uniformly truncated will become another regular polygon : t { n } is { 2n }. 45. Each is a regular polygon , a triangle or square or pentagon or figures with too many sides to count. 46. In a two dimensional world a regular polygon can be identified by a single angle and / or vertex. 47. A regular polygon uniformly truncated will become another regular polygon : t { n } is { 2n }. 48. The central angle of the regular polygon is formed at the center by the radii to two adjacent vertices. 49. He achieved this level of accuracy by calculating the perimeter of a regular polygon with 3 ?2 28 sides. 50. There is one infinite family of uniform triaprismatic families of polytopes constructed as a Cartesian products of three regular polygons .
