# Prodigonal antiprismatic symmetry

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### Convex polytopes with (BC

Prodigonal antiprismatic symmetry | |
---|---|

Rank | 3 |

Space | Spherical |

Order | 4 |

**Prodigonal antiprismatic symmetry**, also known as **prodappic symmetry** and notated **(B _{2}+×A_{1})/2** or

**(BC**, is a 3D spherical symmetry group. It is the symmetry group of the tetragonal disphenoid if the top and bottom edges are regarded as having chiral digonal rather tha full igonal symmetry.

_{2}+×A_{1})/2### Subgroups[edit | edit source]

### Convex polytopes with (BC_{2}+×A_{1})/2 symmetry[edit | edit source]

- Tetragonal disphenoid (noble)