A dodecahedron.
10 * * * * * Polyhedra are named according to the number of faces that they have. So a 3d dodecagon, called a dodecahedron would have 12 faces.
A 3-d shape made from pentagonal faces is a dodecahedron (12 sides).
12 (a dodecahedron)
A dodecahedron
A 12 sided 3D shape is called a dodecahedron.
Dodecahedron.
Pentakis Dodecahedron
A 3D pentagon could be called a pentagon prism or a dodecahedron which is a Platonic solid with 12 pentagonal faces.
It's called a dodecahedron (3d) and a dodecagon (2d)
I'm assuming you mean a 3-d shape with faces of pentagons. This is called a Dodecahedron
a cube or a dodecahedron * * * * * Not a cube, which has only six sides!
A dodecahedron is a 3D shape but it's 2D shape is a dodecagon.
That is a Dodecahedron.
Dodecahedron
A dodecahedron.
It's still just a dodecahedron, and dodecahedrons are normally 3D