Protriangular prismatic symmetry

Protriangular prismatic symmetry, also known as protrippic symmetry and notated as A2+×A1, is a 3D spherical symmetry group. It is the symmetry group of the triangular prism if the triangles are considered to have chiral rather than full triangular symmetry.

Subgroups

 * A2+×I (maximal)
 * A1×I×I (maximal)
 * I×I×I

Convex polytopes with A2+×A1 symmetry

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