12
It's called a dodecahedron (3d) and a dodecagon (2d)
DODECAHEDRONThe correct answer is dodecagon. A dodecahedron is a 3-d shape with 12 faces.
A dodecahedron can have 8 to 20 vertices.
A dodecahedron has 12 sides.
A dodecahedron can have 8 to 20 vertices.
a dodecahedron has 20 vertices and 12 faces
A dodecahedron has 0 parallel faces
A dodecahedron need not have any triangular faces.
A dodecahedron is a polyhedron with between 8 and 20 vertices.
Every dodecahedron - not just an average one, has 12 faces. It can have as few as 8 vertices.
A dodecahedron need not have any parallel lines.
A dodecahedron is a polyhedron with between 18 and 30 faces.