nonagon
A nonagon is a nine faced shape.
It is a nonahedron.
tetrahedron is a 4 faced 3d shape.
A six faced 3d shape is called a cube.
A twelve-faced shape is a dodecagon, also known as a dodecahedron.
icosahedron
No.
Enneahedral
a McNeilapon
It is a 12 faced shape
icosahedron
A hendecahedron.
A pentahedron.