answersLogoWhite

0

It depends on what you mean by a 3-d pentagon.

To most people, a 3-d pentagon is a dodecahedron - a 3d shape with 12 pentagonal faces. In that case, each of the faces, by definition, must be a pentagon!

If you mean a pentahedron - a 3d shape with 5 plane faces, it could be a triangular prism or a quadrilateral based pyramid. In the first cae the bases are triangles, in the second, a quadrilateral.

User Avatar

Wiki User

13y ago

What else can I help you with?