Tetrated dodecahedron: Difference between revisions
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The '''tetrated dodecahedron''' is a [[near-miss Johnson solid]]. It was first discovered in 2002 by Alex Doskey. It was then independently rediscovered in 2003 and named by Robert Austin. It has 28 faces: twelve regular pentagons arranged in four panels of three pentagons each, four equilateral triangles (shown in blue), and six pairs of isosceles triangles (shown in yellow). All edges of the tetrated dodecahedron have the same length, except for the shared bases of these isosceles triangles, which are approximately 1.07 times as long as the other edges. This [[polyhedron]] has [[tetrahedral symmetry]]. |
The '''tetrated dodecahedron''' is a [[near-miss Johnson solid]]. It was first discovered in 2002 by Alex Doskey. It was then independently rediscovered in 2003 and named by Robert Austin. It has 28 faces: twelve regular pentagons arranged in four panels of three pentagons each, four equilateral triangles (shown in blue), and six pairs of isosceles triangles (shown in yellow). All edges of the tetrated dodecahedron have the same length, except for the shared bases of these isosceles triangles, which are approximately 1.07 times as long as the other edges. This [[polyhedron]] has [[tetrahedral symmetry]]. |
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== See also == |
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== Comparable [[Semiregular polyhedron|semiregular]] and [[Johnson solid]]s == |
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See also: [[Icosidodecahedron]] and [[pentagonal orthobirotunda]]<BR> |
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[[Image:Icosidodecahedron.jpg|200px]][[ |
|valign="bottom"|[[Image:Icosidodecahedron.jpg|200px]]<BR>[[Icosidodecahedron]] ([[Semiregular polyhedron|semiregular]]) |
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|[[Image:Pentagonal orthobirotunda.png|240px]]<BR>[[Pentagonal orthobirotunda]] ([[Johnson solid|Johnson]]) |
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== External links == |
== External links == |
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Revision as of 05:13, 27 December 2006
| Tetrated dodecahedron | |
|---|---|
| |
| Type | near-miss Johnson solid |
| Faces | 4+12 triangles 12 pentagons |
| Edges | 54 |
| Vertices | 28 |
| Vertex configuration | 4 (5.5.5) 12 (3.5.3.5) 12 (3.3.5.5) |
| Symmetry group | Td |
| Properties | convex |
The tetrated dodecahedron is a near-miss Johnson solid. It was first discovered in 2002 by Alex Doskey. It was then independently rediscovered in 2003 and named by Robert Austin. It has 28 faces: twelve regular pentagons arranged in four panels of three pentagons each, four equilateral triangles (shown in blue), and six pairs of isosceles triangles (shown in yellow). All edges of the tetrated dodecahedron have the same length, except for the shared bases of these isosceles triangles, which are approximately 1.07 times as long as the other edges. This polyhedron has tetrahedral symmetry.
See also
 Icosidodecahedron (semiregular) |
 Pentagonal orthobirotunda (Johnson) |