Case number 20

Octahedron with inscribed cuboctahedron Projection of the four-dimensional 5-cell Cube with joining surfaces of the balance point and the borders Cube with joining surfaces of the balance point and the borders
Cube and inscribed octahedron Projection of the four-dimensional 8-cell Regular tetrahedron, hexahedron, octahedron, icosahedron Regular tetrahedron, hexahedron, octahedron, icosahedron
Regular tetrahedron, hexahedron, octahedron, icosahedron Projection of the four-dimensional 24- cell Regular tetrahedron, hexahedron, octahedron, icosahedron Cube with inscribed cuboctahedron
Projection of the four-dimensional 16-cell Cube with inscribed truncated cube Tetrahedron with inscribed truncated  tetrahedron Icosahedron with inscribed truncated icosahedron
Dodecahedron with inscribed truncated dodecahedron Octahedron with inscribed truncated octahedron Octahedron Tetrahedron

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