Reflection symmetry (2D)
(Redirected from A1×I)
| Reflection symmetry (2D) | |
|---|---|
 | |
| Rank | 2 |
| Space | Spherical |
| Order | 2 |
Two-dimensional reflection symmetry, also known as dyadic symmetry and notated as A1×I, is a 2D spherical symmetry group. It is the symmetry group of the isosceles triangle and corresponds to mirror symmetry. It has only one reflectional element. Every regular polygonal symmetry has this as a subsymmetry, and it is the symmetry of any bilaterally-symmetric polygon.
Subgroups[edit | edit source]
- Identity symmetry (maximal)