Great ditrigonal dodecicosidodecahedron

In geometry, the great ditrigonal dodecicosidodecahedron (or great dodekified icosidodecahedron) is a nonconvex uniform polyhedron, indexed as U42. It has 44 faces (20 triangles, 12 pentagons, and 12 decagrams), 120 edges, and 60 vertices.[1] Its vertex figure is an isosceles trapezoid.

Great ditrigonal dodecicosidodecahedron
TypeUniform star polyhedron
ElementsF = 44, E = 120
V = 60 (χ = 16)
Faces by sides20{3}+12{5}+12{10/3}
Wythoff symbol5/3
5/4 3/2 | 5/3
Symmetry groupIh, [5,3], *532
Index referencesU42, C54, W81
Dual polyhedronGreat ditrigonal dodecacronic hexecontahedron
Vertex figure
3.10/3.5.10/3
Bowers acronymGidditdid
3D model of a great ditrigonal dodecicosidodecahedron

It shares its vertex arrangement with the truncated dodecahedron. It additionally shares its edge arrangement with the great icosicosidodecahedron (having the triangular and pentagonal faces in common) and the great dodecicosahedron (having the decagrammic faces in common).


Truncated dodecahedron

Great icosicosidodecahedron

Great ditrigonal dodecicosidodecahedron

Great dodecicosahedron

References

  1. Maeder, Roman. "42: great ditrigonal dodecicosidodecahedron". MathConsult.

See also

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