No, tetrahedron is a polyhedron with four faces.
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No, tetrahedron is a polyhedron with four faces.
There is no such shape. A tetrahedron has 6 edges, but it is NOT a prism.
Pentagon (and in 3d: triangular prism and tetrahedron.)
A regular tetrahedron. octahedron, dodecahedron.
2 - a Triangular Prism has 6, a Triangular Pyramid (Tetrahedron) has 4.