Chiral dodecagonal symmetry

Chiral dodecagonal symmetry, also known as kidoggic symmetry and notated I2(12)+, is a 2D spherical symmetry group. It is the symmetry group of the dodecagon with rotational symmetry but no reflections.

Subgroups

 * G2+ (maximal)
 * B2+ (maximal)
 * A2+
 * K2+
 * I×I

Convex polytopes with G2+ symmetry

 * Dodecagon (regular)