The dual of a truncated quasi-regular polyhedron is face-transitive with
faces shaped like scalene triangles. Face transitivity means that for any
two faces of the polyhedron, there exists a translation, rotation, and/or
reflection that leaves the outward appearance of the polyhedron unchanged
yet moves one face to the other. There are only two truncated quasi-regular
duals that are convex and not self-intersecting, namely the
Disdyakis Dodecahedron and the
Disdyakis Triacontahedron.
When non-convexity and self-intersection are allowed, there are five other
truncated quasi-regular duals. Only one, the
Great Disdyakis Dodecahedron,
is not self-intersecting.