daigram of regular octahedron
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In geometry, an octahedron (plural: octahedra ) is a polyhedron with eight faces, twelve edges, and six vertices. The term is most commonly used to refer to the regular octahedron ...
3.3.3.3 (Vertex figure): Cube; (dual polyhedron)
Faces by sides: 8
Face configuration: V4.4.4
Dihedral angle: 109.47122° = arccos(−1/3)
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