Small 10-3 double step prism

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Small 10-3 double step prism
File:Small 10-3 double step prism.png
Cells10 tetragonal disphenoids, 20+20 phyllic disphenoids, 40 irregular tetrahedra
Faces20 isosceles triangles, 40+40+40+40 scalene triangles
Vertex figure11-vertex polyhedron with 18 triangular faces
Measures (edge length 1)
Central density1
Related polytopes
DualSmall 10-3 bigyrochoron
Abstract & topological properties
Euler characteristic0
SymmetryS2(I2(10)-3)×2I, order 40

The small 10-3 double step prism is a convex isogonal polychoron that consists of 10 tetragonal disphenoids, 40 phyllic disphenoids of two kinds, and 40 irregular tetrahedra. 2 tetragonal disphenoids, 8 phyllic disphenoids, and 8 irregular tetrahedra join at each vertex. It can be obtained as one of several polychora formed as the convex hull of two orthogonal 10-3 step prisms.

This polychoron cannot be optimized using the ratio method, because the solution would yield a biambodecachoron instead.

Vertex coordinates[edit | edit source]

Coordinates for the vertices of a small 10-3 double step prism are given by:

where a/b is greater than but less than 1, and k is an integer from 0 to 9.

External links[edit | edit source]