Protriangular prismatic symmetry

A2+×A1, also known as protrippic symmetry or protriangular prismatic symmetry, is a 3D spherical Coxeter group.

Subgroups

 * A2+×I
 * A1×I×I
 * I×I×I

Convex polytopes with A2+×A1 symmetry

 * Triangular prism (isogonal)/Triangular tegum (isotopic)