• Thumbnail for Spherical polyhedron
    In geometry, a spherical polyhedron or spherical tiling is a tiling of the sphere in which the surface is divided or partitioned by great arcs into bounded...
    11 KB (514 words) - 00:48, 16 April 2025
  • a (globally) projective polyhedron is a tessellation of the real projective plane. These are projective analogs of spherical polyhedra – tessellations...
    16 KB (2,111 words) - 21:40, 1 November 2022
  • Thumbnail for Geodesic polyhedron
    Wenninger's Spherical models, polyhedra are given geodesic notation in the form {3,q+}b,c, where {3,q} is the Schläfli symbol for the regular polyhedron with...
    17 KB (1,147 words) - 21:32, 1 April 2025
  • Thumbnail for Polyhedron
    In geometry, a polyhedron (pl.: polyhedra or polyhedrons; from Greek πολύ (poly-)  'many' and ἕδρον (-hedron)  'base, seat') is a three-dimensional figure...
    97 KB (10,628 words) - 02:52, 13 May 2025
  • Thumbnail for Polyhedral map projection
    projection based on a spherical polyhedron. Typically, the polyhedron is overlaid on the globe, and each face of the polyhedron is transformed to a polygon...
    9 KB (964 words) - 01:07, 18 May 2025
  • Thumbnail for Sphere
    Sphere (redirect from Spherical)
    packing Spherical coordinates Spherical cow Spherical helix, tangent indicatrix of a curve of constant precession Spherical polyhedron Sphericity Tennis...
    41 KB (5,342 words) - 15:01, 12 May 2025
  • Thumbnail for Cube
    Cube (redirect from Spherical cube)
    The spherical cube represents the spherical polyhedron, which can be modeled by the arc of great circles, creating bounds as the edges of a spherical square...
    61 KB (6,298 words) - 17:40, 14 May 2025
  • Thumbnail for Toroidal polyhedron
    topologically self-dual. Projective polyhedron Skew apeirohedron (infinite skew polyhedron) Spherical polyhedron Toroidal graph Whiteley (1979); Stewart...
    11 KB (943 words) - 13:08, 18 March 2025
  • A regular polyhedron is a polyhedron whose symmetry group acts transitively on its flags. A regular polyhedron is highly symmetrical, being all of edge-transitive...
    32 KB (3,128 words) - 17:55, 2 April 2025
  • Thumbnail for Truncated icosahedron
    55.288a^{3}.\end{aligned}}} The sphericity of a polyhedron Ψ {\displaystyle \Psi } describes how closely a polyhedron resembles a sphere. It can be defined...
    16 KB (1,563 words) - 16:49, 21 March 2025
  • Thumbnail for Spherical trigonometry
    spherical distance Lenart sphere Schwarz triangle Spherical geometry Spherical polyhedron Triangulation (surveying) Todhunter, I. (1886). Spherical Trigonometry...
    41 KB (6,784 words) - 13:26, 6 May 2025
  • Thumbnail for Digon
    transforming polyhedra. A spherical lune is a digon whose two vertices are antipodal points on the sphere. A spherical polyhedron constructed from such digons...
    6 KB (688 words) - 00:20, 15 January 2025
  • Thumbnail for Uniform polyhedron
    In geometry, a uniform polyhedron has regular polygons as faces and is vertex-transitive—there is an isometry mapping any vertex onto any other. It follows...
    66 KB (2,584 words) - 20:01, 30 March 2025
  • Thumbnail for Disdyakis triacontahedron
    triacontahedron has the most faces of any other strictly convex polyhedron where every face of the polyhedron has the same shape. Projected into a sphere, the edges...
    15 KB (1,361 words) - 12:10, 26 April 2025
  • Thumbnail for Spherical geometry
    positive value of f, this exceeds 180°. Spherical astronomy Spherical conic Spherical distance Spherical polyhedron Spherics Half-side formula Lénárt sphere Versor...
    15 KB (1,955 words) - 21:52, 19 April 2025
  • Platonic solid is a convex, regular polyhedron in three-dimensional Euclidean space. Being a regular polyhedron means that the faces are congruent (identical...
    54 KB (5,634 words) - 03:59, 17 May 2025
  • Thumbnail for Tetrakis hexahedron
    faces represent the 24 fundamental domains of tetrahedral symmetry. This polyhedron can be constructed from 6 great circles on a sphere. It can also be seen...
    12 KB (1,107 words) - 06:53, 4 February 2024
  • Thumbnail for Hosohedron
    Schläfli symbol {2,n}, with each spherical lune having internal angle ⁠2π/n⁠radians (⁠360/n⁠ degrees). For a regular polyhedron whose Schläfli symbol is {m...
    8 KB (592 words) - 20:45, 25 January 2023
  • Thumbnail for Midsphere
    or intersphere of a convex polyhedron is a sphere which is tangent to every edge of the polyhedron. Not every polyhedron has a midsphere, but the uniform...
    25 KB (2,932 words) - 17:02, 24 January 2025
  • numbers of vertices (corners), edges and faces in the given polyhedron. Any convex polyhedron's surface has Euler characteristic   χ = V − E + F = 2   ....
    29 KB (3,461 words) - 21:33, 8 April 2025
  • Thumbnail for Density (polytope)
    value for density corresponds to the number of times the associated spherical polyhedron covers the sphere. ∑ i d v i v i − e + ∑ i d f i f i = 2 D {\displaystyle...
    10 KB (1,171 words) - 16:37, 22 April 2025
  • Thumbnail for Abstract polytope
    given manifold. If K and L are spherical (that is, tessellations of a topological sphere), then P is called locally spherical and corresponds itself to a...
    34 KB (4,552 words) - 18:59, 9 May 2025
  • such as the hemi-cube, which are the image of a 2 to 1 map of a spherical polyhedron with central symmetry. Their Wythoff symbols are of the form p/(p − q) p/q | r;...
    14 KB (859 words) - 02:43, 5 May 2025
  • tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertices...
    76 KB (9,506 words) - 04:09, 11 March 2025
  • form a convex polyhedron called its convex hull. A compound is a faceting of its convex hull.[citation needed] Another convex polyhedron is formed by the...
    25 KB (1,430 words) - 13:59, 18 February 2025
  • Thumbnail for Dihedron
    A dihedron (pl. dihedra) is a type of polyhedron, made of two polygon faces which share the same set of n edges. In three-dimensional Euclidean space,...
    6 KB (629 words) - 01:43, 6 May 2025
  • Thumbnail for Disdyakis dodecahedron
    dodecahedron. The edges of a spherical disdyakis dodecahedron belong to 9 great circles. Three of them form a spherical octahedron (gray in the images...
    11 KB (891 words) - 16:17, 15 April 2025
  • Thumbnail for Compound of five octahedra
    Compound of five octahedra (category Polyhedron stubs)
    The compound of five octahedra is one of the five regular polyhedron compounds, and can also be seen as a stellation. It was first described by Edmund...
    6 KB (369 words) - 10:32, 22 March 2025
  • Thumbnail for Pentagonal trapezohedron
    infinite family of trapezohedra, face-transitive polyhedra. Its dual polyhedron is the pentagonal antiprism. As a decahedron it has ten faces which are...
    5 KB (450 words) - 06:45, 15 May 2025
  • Three-dimensional space Regular polyhedron Platonic solid: Tetrahedron, Cube, Octahedron, Dodecahedron, Icosahedron Regular spherical polyhedron Dihedron, Hosohedron...
    30 KB (2,692 words) - 15:23, 9 February 2025