List of rotational symmetry polyhedral sets

There are an unlimited number of polyhedral sets which can be defined with rotational symmetry.

This list shows the some of the simplest sets which Appear within the convex uniform polyhedra, Johnson solids and related duals.

Each set has one polyhedron for each polygon, and each is prefixed by its generating polygon: triangular, square, pentagonal, hexagonal, etc. Some have degenerate (linear) forms as well where the symmetry has collapsed to an edge.

There are three symmetry classes:

  1. Cnv - n-fold pyramidal symmetry
  2. Dnh - n-fold prismatic symmetry
  3. Dnv - n-fold antiprismatic symmetry

Set

Symmetry

V

E

F

Example(s)

Dual set

Pyramids

Cnv

n+1

2n

n+1


Pentagonal pyramid

Self-dual

Frustums
(Truncated pyramids)

Cnv

2n

3n

n+2


(Pentagonal frustum)

--

Cupolae

Cnv

3n

5n

2n+2


Pentagonal cupola

--

Prisms

Dnh

2n

3n

n+2


Pentagonal prism

Bipyramids

Bipyramids

Dnh

n+2

3n

2n


Octahedron

Prisms

--

Dnh

3n+2

6n

3n


Rhombic dodecahedron
--

(below)

--

Dnh

3n

6n

3n+2


Cuboctahedron

--

Bifrustums
(Truncated bipyramids)

Dnh

3n

5n

2n+2


Pentagonal bifrustum

Elongated bipyramids

Elongated dipyramids

Dnh

2n+2

5n

3n


Elongated hexagonal dipyramid
J14, J15, J16

Bifrustums

--

Dnh

5n

8n

3n+2


--

(below)

--

Dnh

3n+2

8n

5n

--

--

Orthobicupolae

Dnh

4n

8n

4n+2


J27, J28, J30

(below)

Dual orthobicupolae

Dnh

4n+2

8n

4n

Trapezo-rhombic_dodecahedron.png

Orthobicupolae

Antiprisms

Dnd

2n

4n

2n+2


Pentagonal antiprism

Trapezohedra

Trapezohedra

Dnd

2n+2

4n

2n


Pentagonal trapezohedron

Antiprisms

Truncated trapezohedra

Dnd

4n

6n

2n+2


Dodecahedron
(Truncated pentagonal trapezohedron)

Gyroelongated dipyramids

Gyroelongated dipyramids

Dnd

2n+2

6n

4n


Icosahedron
(Gyroelongated pentagonal dipyramid)
(J17)

Truncated trapezohedra

Gyrobicupolae

Dnd

4n

8n

4n+2


Cuboctahedron
(Triangular gyrobicupola)
J29, J31

(below)

Dual gyrobicupolae

Dnd

4n+2

8n

4n


Rhombic dodecahedron

Gyrobicupolae