Question

Which of the following are polyhedra? Check all that apply.

Answer 1

In elementary geometry, a polyhedron is a solid in three dimensions with flat faces, straight edges and sharp corners or vertices. This means that the polyhedra among these are all (tetrahedron, octahedron, dodecahedron, and cube) except for pool. 

Answer 2

A solid figure with more than 6 plain faces: octahedron has 8, and a dodecahedron has 12. Tetrahedron only has 4 cube has 6 and idk about pool :)