Case number 21

Tetrahedron-, octahedron-, icosahedron-division on the spherical surface Tetrahedron-, octahedron-, icosahedron-division on the spherical surface Tetrahedron-, octahedron-, icosahedron-division on the spherical surface Prismatic polygon with n vertices
Saw-border polygon with n vertices Octahedron with inscribed snub cube Cube with inscribed rhombicuboctahedron Rhombicosidodecahedron
Snub dodecahedron Dodecahedron with the 5 inscribed cubes Two rhombic dodecahedrons Rhombusthirtyflat with the symmetries of the icosahedron group
Three-sided steric edges and its polar polygons Icosahedron Dodecahedron in Icosahedron

The corresponding bottom case is: Case number U 21

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