Triangular spinoduoalterprism

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Triangular spinoduoalterprism
Rank4
TypeScaliform
Notation
Bowers style acronymTrindap
Elements
Cells24 octahedra, 36 pentagonal prisms, 36 pentagrammic prisms, 36 cube-pentagrammic wedge blends
Faces24+144 triangles, 36+72+72+72 squares
72 pentagons
72 pentagrams
Edges36+72+144+144
Vertices72
Measures (edge length 1)
Circumradius
Related polytopes
ArmyTransitional triangular double prismantiprismoid
RegimentTrindap
ConjugateNone
Abstract & topological properties
OrientableNo
Properties
SymmetryG2≀(S2/2), order 144
ConvexNo
NatureWild

The triangular spinoduoalterprism or trindap is a nonconvex scaliform polychoron. It consists of 36 cube-pentagrammic wedge blends, 36 pentagonal prisms, 36 pentagrammic prisms, and 24 octahedra.

The triangular spinoduoalterprism is one of the two known scaliform polychora with G2≀(S2/2) symmetry, the other being the triangular fissary duoalterprism.