A pentadecahedron is a closed 3-d shape with 15 polygonal faces. There are almost 24 billion topologically different convex versions and, since none of these are regular, the term is ambiguous. The number of edges will depend on which specific 15-hedron you have in mind.
Chat with our AI personalities
12 Edges is how many edges a rectangular prismhas
24 edges.24 edges.24 edges.24 edges.
none its how many edges does a corner have
72 Edges
20 edges