12 faces
* * * * *
Correct as far as it goes, but incomplete.
20 vertices
30 edges
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12 faces 20 vertices 30 edges
By definition, a dodecahedron must have twelve faces. So it must be an decagonal prism. Edges = 30 Faces = 12 Vertices = 20
A pentagonal prism has 7 faces, 10 vertices and 15 edges.
faces ,edges and vertices of a rectangular prism
It depends on a decagonal what. A decagonal prism has 20 vertices. A decagonal pyramid has 11 vertices.