Catalan solids

Disdyakis triacontahedron

In geometry, a disdyakis triacontahedron, hexakis icosahedron, decakis dodecahedron or kisrhombic triacontahedron is a Catalan solid with 120 faces and the dual to the Archimedean truncated icosidodecahedron. As such it is face-uniform but with irregular face polygons. It slightly resembles an inflated rhombic triacontahedron: if one replaces each face of the rhombic triacontahedron with a single vertex and four triangles in a regular fashion, one ends up with a disdyakis triacontahedron. That is, the disdyakis triacontahedron is the Kleetope of the rhombic triacontahedron. It also has the most faces among the Archimedean and Catalan solids, with the snub dodecahedron, with 92 faces, in second place. If the bipyramids, the gyroelongated bipyramids, and the trapezohedra are excluded, the disdyakis 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 of a disdyakis triacontahedron define 15 great circles. Buckminster Fuller used these 15 great circles, along with 10 and 6 others in two other polyhedra to define his 31 great circles of the spherical icosahedron. (Wikipedia).

Disdyakis triacontahedron
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Related pages

Icosahedral symmetry | Combination puzzle | Net (polyhedron) | Scalene triangle | Face (geometry) | Gyroelongated bipyramid | 31 great circles of the spherical icosahedron | Orthographic projection | Rhombic triacontahedron | Isohedral figure | Archimedean solid | Pyritohedron | Vertex (geometry) | Truncated icosidodecahedron | Kleetope | Spherical polyhedron | Golden ratio | Bipyramid | Orbifold notation | Great circle | Compound of five octahedra | Snub dodecahedron | Symmetry group | Prism (geometry) | Point groups in three dimensions | Regular icosahedron | Polygon | Sphere | Regular dodecahedron | Stereographic projection | Deltoidal hexecontahedron | Dice | Projective geometry | Conway polyhedron notation | Coxeter notation | Geometry | Regular polygon | Dual polyhedron | Catalan solid | Dihedral angle