Elongated triangular bipyramid

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Elongated triangular bipyramid
Rank3
TypeCRF
Notation
Bowers style acronymEtidpy
Coxeter diagramoxxo3ooo&#xt
Elements
Faces
Edges3+6+6
Vertices2+6
Vertex figures2 triangles, edge length 1
 3 kites, edge lengths 1 and 2
Measures (edge length 1)
Volume
Dihedral angles3–4:
 3–3:
 4–4: 60°
Central density1
Number of external pieces9
Level of complexity5
Related polytopes
ArmyEtidpy
RegimentEtidpy
DualTriangular bifrustum
ConjugateNone
Abstract & topological properties
Flag count60
Euler characteristic2
SurfaceSphere
OrientableYes
Genus0
Properties
SymmetryA2×A1, order 12
Flag orbits5
ConvexYes
NatureTame

The elongated triangular bipyramid (OBSA: etidpy) is one of the 92 Johnson solids (J14). It consists of 6 triangles and 3 squares. It can be constructed by inserting a triangular prism between the two halves of the triangular bipyramid.

Vertex coordinates[edit | edit source]

An elongated triangular bipyramid of edge length 1 has the following vertices:

  • ,
  • ,
  • .

External links[edit | edit source]