improper polyhedron
1Tetrahedron — For the academic journal, see Tetrahedron (journal). Regular Tetrahedron (Click here for rotating model) Type Platonic solid Elements F = 4, E = 6 V = 4 (χ = 2) Faces by s …
2Snub cube — (Click here for rotating model) Type Archimedean solid Uniform polyhedron Elements F = 38, E = 60, V = 24 (χ = 2) Faces by sides (8+24){3}+6{4} …
3Vertex configuration — In polyhedral geometry a vertex configuration is a short hand notation for representing a polyhedron vertex figure as the sequence of faces around a vertex. For uniform polyhedra there is only one vertex type and therefore the vertex… …
4Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… …
5List of mathematics articles (I) — NOTOC Ia IA automorphism ICER Icosagon Icosahedral 120 cell Icosahedral prism Icosahedral symmetry Icosahedron Icosian Calculus Icosian game Icosidodecadodecahedron Icosidodecahedron Icositetrachoric honeycomb Icositruncated dodecadodecahedron… …
6Star polygon — Set of regular star polygons {5/2} {7/2} …
7Compound of twenty octahedra — Type Uniform compound Index UC14 Polyhedra 20 octahedra Faces 40+120 triangles …
8Compound of twelve tetrahedra with rotational freedom — Type Uniform compound Index UC2 Polyhedra 12 tetrahedra Faces 48 triangles …
9Compound of six tetrahedra with rotational freedom — Type Uniform compound Index UC1 Polyhedra 6 tetrahedra Faces 24 triangles …
10Compound of eight octahedra with rotational freedom — Type Uniform compound Index UC11 Polyhedra 8 octahedra Faces 16+48 triangles …
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