They all are, with 6, 20, 8, 4 and 12 faces respectively.
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Tetrahedron, Cube Octahedron Dodecahedron Icosahedron
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. There are only five Platonic Solids; Tetrahedron, Hexahedron, Octahedron, Dodecahedron and Icosahedron, with 4,6,8,12 and 20 faces respectively.
5 tetrahedron, cube, octahedron, dodecahedron, and Icosahedron
The Platonic Solids: Tetrahedron, cube, octahedron, dodecahedron and icosahedron.