An octagonal dihedron is a 3-D polyhedron with two octagonal faces which share their edges and vertices. In normal Euclidean space, it is degenerate, but can exist as a tiling of the sphere where each face makes up a hemisphere.
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Regular |
Rectified |
Birectified |
Truncated |
Bitruncated |
Cantellated |
Cantitruncated |
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Octagonal dihedron | Octagonal dihedron | Octagonal hosohedron | Truncated octagonal dihedron | Octagonal prism | Octagonal prism | Hexadecagonal prism |
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Zerogonal dihedron | Monogonal dihedron | Digonal dihedron | Trigonal dihedron | Square dihedron | Pentagonal dihedron | Hexagonal dihedron | Heptagonal dihedron | Octagonal dihedron | ... | Apeirogonal dihedron | Pseudogonal dihedron |