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词条 Hexapentakis truncated icosahedron
释义

  1. Construction

  2. Related polyhedra

      Pentakis truncated icosahedron  Dual   Hexakis truncated icosahedron   Dual  

  3. See also

  4. References

  5. External links

Hexapentakis truncated icosahedron
Conway notation [https://levskaya.github.io/polyhedronisme/?recipe=A10ktI ktI]
Geodesic polyhedron{3,5+}3,0
Faces180
Edges270
Vertices92
Face configuration(60) V5.6.6
(120) V6.6.6
Symmetry groupIcosahedral (Ih)
Dual polyhedronTruncated pentakis dodecahedron
Propertiesconvex

The hexapentakis truncated icosahedron is a convex polyhedron constructed as an augmented truncated icosahedron. It is geodesic polyhedron {3,5+}3,0, with pentavalent vertices separated by an edge-direct distance of 3 steps.

Construction

Geodesic polyhedra are constructed by subdividing faces of simpler polyhedra, and then projecting the new vertices onto the surface of a sphere. A geodesic polyhedron has straight edges and flat faces that approximate a sphere, but it can also be made as a spherical polyhedron (A tessellation on a sphere) with true geodesic curved edges on the surface of a sphere. and spherical triangle faces.

Conway u3I = (kt)I(k5)k6tI(k)tISpherical ktI
Image
Form3-frequency subdivided
icosahedron
1-frequency subdivided
hexakis
truncated icosahedron
1-frequency subdivided
truncated icosahedron
Spherical polyhedron

Related polyhedra

PolyhedronTruncated Icosahedron#Pentakis truncated Icosahedron#Hexakis truncated IcosahedronHexapentakis truncated Icosahedron
Image
ConwaytIk5tIk6tIk5k6tI

Pentakis truncated icosahedron

Pentakis truncated icosahedron
Conway notation [https://levskaya.github.io/polyhedronisme/?recipe=A10k5tI k5tI]
Faces132:
60 triangles
20 hexagons
Edges90
Vertices72
Symmetry groupIcosahedral (Ih)
Dual polyhedronPentatruncated pentakis dodecahedron
Propertiesconvex

The pentakis truncated icosahedron is a convex polyhedron constructed as an augmented truncated icosahedron, adding pyramids to the 12 pentagonal faces, creating 60 new triangular faces.

It is geometrically similar to the icosahedron where the 20 triangular faces are subdivided with a central hexagon, and 3 corner triangles.

Dual

Its dual polyhedron can be called a pentatruncated pentakis dodecahedron, a dodecahedron, with its vertices augmented by pentagonal pyramids, and then truncated the apex of those pyramids, or adding a pentagonal prism to each face of the dodecahedron. It is the net of a dodecahedral prism.

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Hexakis truncated icosahedron

Hexakis truncated icosahedron
Conway notation [https://levskaya.github.io/polyhedronisme/?recipe=A10k6tI k6tI]
Faces132:
120 triangles
12 pentagons
Edges210
Vertices80
Symmetry groupIcosahedral (Ih)
Dual polyhedronHexatruncated pentakis dodecahedron
Propertiesconvex

The hexakis truncated icosahedron is a convex polyhedron constructed as an augmented truncated icosahedron, adding pyramids to the 20 hexagonal faces, creating 120 new triangular faces.

It is visually similar to the chiral snub dodecahedron which has 80 triangles and 12 pentagons.

Dual

The dual polyhedron can be seen as a hexatruncated pentakis dodecahedron, a dodecahedron with its faced augmented by pentagonal pyramids (a pentakis dodecahedron), and then its 6-valance vertices truncated.

It has similar groups of irregular pentagons as the pentagonal hexecontahedron.

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See also

  • [https://levskaya.github.io/polyhedronisme/?recipe=ktO&palette=%23ffffff Hexatetrakis truncated octahedron]

References

  • Antony Pugh, Polyhedra: a visual approach, 1976, Chapter 6. The Geodesic Polyhedra of R. Buckminster Fuller and Related Polyhedra
  • {{Citation|last1=Wenninger |first1=Magnus |author1-link=Magnus Wenninger |title=Spherical Models |publisher=Cambridge University Press |isbn=978-0-521-29432-4 |mr=552023 |year=1979 |url=http://www.employees.csbsju.edu/mwenninger/magnus2000.html |deadurl=yes |archiveurl=https://web.archive.org/web/20080704103400/http://www.employees.csbsju.edu/mwenninger/magnus2000.html |archivedate=July 4, 2008 }} Reprinted by Dover 1999 {{ISBN|978-0-486-40921-4}}

External links

  • VTML polyhedral generator Try "ktI" (Conway polyhedron notation)

1 : Geodesic polyhedra

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