Square symmetry

BC2, also known as square symmetry, is a 2D spherical Coxeter group. It is the symmetry group of the square, with 4 rotation and 4 reflection elements.

Subgroups

 * BC2+
 * K2
 * K2+
 * A1×I
 * I×I

Convex polytopes with BC2+ symmetry

 * Square (regular)
 * Ditetragon (isogonal)/Tetrambus (isotopic)