That depends on the kind of polyhedron.
There are five kinds of regular polyhedra (all edges of equal length).
It is also possible to have a polyhedron that is not regular, with almost any number of sides and edges.
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A polyhedron has 30 edges and 12 vertices. How many faces does it have
A sphere is not a polyhedron because it has no edges, no vertices and no flat faces The word 'polyhedron' means many faces.
A polyhedron with 12 faces.
False
False