# Reflection symmetry (3D)

(Redirected from A1×I×I)

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Reflection symmetry (3D) | |
---|---|

Rank | 3 |

Space | Spherical |

Order | 2 |

**Three-dimensional reflection symmetry**, also known as **dyadic symmetry** and notated as **A _{1}×I×I**, is a 3D spherical symmetry group. It is the symmetry group of the sphenoid and corresponds to mirror symmetry. It is a subsymmetry of all regular polyhedral subsymmetries.

### Subgroups[edit | edit source]

- I×I×I (maximal)