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/ˌpɒlɪˈhiːdɹən/ · noun
(geometry) A solid figure with many flat faces and straight edges..
Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids.
Use polyhedron when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Polyhedron means (geometry) A solid figure with many flat faces and straight edges..
Common synonyms include polyhedron.
The opposite depends on the specific sense.
Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids.
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