Enneagrammic prism

9-2 enneagrammic prism
Type Uniform polyhedron
Faces 2 enneagrams
9 squares
Edges 27
Vertices 18
Vertex configuration 9/2.4.4
Wythoff symbol 2 9/2 | 2
Symmetry group D9h, [2,9],(*299), order 36
Dual polyhedron Enneagrammic bipyramid
Properties nonconvex
Vertex figure
9-4 enneagrammic prism
Type Uniform polyhedron
Faces 2 enneagrams
9 squares
Edges 27
Vertices 18
Vertex configuration 9/4.4.4
Wythoff symbol 2 9/4 | 2
Symmetry group D9h, [2,9],(*299), order 36
Dual polyhedron Enneagrammic bipyramid
Properties nonconvex
Vertex figure

In geometry, the enneagrammic prism is a nonconvex prisms formed by squares sides and two regular star polygon caps. There are two forms based on the two types of enneagrams: {9/2} and {9/4}.

Sources


This article is issued from Wikipedia - version of the Saturday, May 17, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.