# Rectangular symmetry

(Redirected from A1×A1)

Rectangular symmetry | |
---|---|

Rank | 2 |

Space | Spherical |

Order | 4 |

Info | |

Coxeter diagram | |

Elements | |

Axes | 2 × A_{1} |

Related polytopes | |

Omnitruncate | Rectangle |

**Rectangular symmetry**, also known as **rectic symmetry** or **digonal symmetry** and notated **K _{2}**, is a 2D spherical Coxeter group. It is the symmetry group of the rectangle, with two rotations and two reflections. Any even-sided polygon has this as a subsymmetry.

### Subgroups[edit | edit source]

- Inversion symmetry (normal, maximal)
- Reflection symmetry (normal, maximal)
- Identity symmetry (normal)