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