
Each circle shown is in one of the reflection-planes of this polyhedron, which is the dual of the icosidodecahedron, an Archimedean solid.
(Software credit: see http://www.software3d.com/stella.php)

Each circle shown is in one of the reflection-planes of this polyhedron, which is the dual of the icosidodecahedron, an Archimedean solid.
(Software credit: see http://www.software3d.com/stella.php)