pentagon-heptagon edges
1Polygon — For other uses, see Polygon (disambiguation). Some polygons of different kinds In geometry a polygon (   …
2Pentagram — For other uses, see Pentagram (disambiguation). Regular pentagram A pentagram Type Star polygon Edges and vertices 5 Schläfli symbol {5/2} …
3Flexagon — In geometry, flexagons are flat models made from folded strips of paper that can be folded, or flexed , to reveal a number of hidden faces. They are amusing toys but have also caught the interest of mathematicians.Flexagons are usually square or… …
4Star polygon — Set of regular star polygons {5/2} {7/2} …
5Stellation — is a process of constructing new polygons (in two dimensions), new polyhedra in three dimensions, or, in general, new polytopes in n dimensions. The process consists of extending elements such as edges or face planes, usually in a symmetrical way …
6Quadrilateral — This article is about four sided mathematical shapes. For other uses, see Quadrilateral (disambiguation). Quadrilateral Six different types of quadrilaterals Edges and vertices 4 …
7Regular polygon — A regular polygon is a polygon which is equiangular (all angles are congruent) and equilateral (all sides have the same length). Regular polygons may be convex or star.General propertiesThese properties apply to both convex and star regular… …
8Dual polygon — In geometry, polygons are associated into pairs called duals, where the vertices of one correspond to the edges of the other. Contents 1 Properties 2 Kinds of duality 2.1 Rectification …
9Octahedron — For the album by The Mars Volta, see Octahedron (album). Regular Octahedron (Click here for rotating model) Type Platonic solid Elements F = 8, E = 12 V = 6 (χ = 2) Faces by sides …
10Decagon — Regular decagon Edges and vertices 10 Schläfli symbol {10} Coxeter–Dynkin diag …
