dodecahedron
I believe it to be a dodecahedron I believe it to be a dodecahedron +++ You believe correctly: it is a dodecahedron.
A dodecahedron has 12 sides.
A dodecahedron can have 8 to 20 vertices.
No, a dodecahedron doesn't have perpendicular faces
When you say "sides", do you mean faces or edges? A dodecahedron has 12 faces and 30 edges.
If you mean a dodecahedron then it has 12 faces, 30 edges and 20 vertices
I assume you mean a regular dodecahedron. A regular dodecahedron has twelve faces, each of which are regular* pentagons. *(all sides are congruent, all angles are congruent)
If you mean the regular polyhedra, they are: tetrahedron, cube (or hexahedron), octahedron, dodecahedron, icosahedron, (Plato's 50) plus: small stellated dodecahedron, great stellated dodecahedron, great dodecahedron, great icosahedron for 9. Maybe a sphere is a perfect curved 3D figure.
No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.
dodecahedron
12 faces of a dodecahedron
A regular dodecahedron does not but it is possible to have a dodecahedron with some triangular faces.
A dodecahedron has 12 faces.
A dodecahedron has pentagonal faces.
A dodecahedron is a polyhedron with 12 faces.A dodecahedron is a three-dimensional shape having twelve plane faces.
I believe it to be a dodecahedron I believe it to be a dodecahedron +++ You believe correctly: it is a dodecahedron.