It need not have any.
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A dodecahedron is a polyhedron with 12 faces, each of which is a regular pentagon. In a dodecahedron, the faces are not parallel to each other. The planes of the faces intersect at various angles, giving the dodecahedron its unique shape and properties.
A triangle can have no parallel lines.
A pentagon has no parallel lines.
A cube has exactly 6 parallel lines.
A cube has exactly 6 parallel lines.