hexagonal prism
A believe this is a cylinder (like the shape of a can), but there might be others.
rectangular prism
There is no shape that has only 2 edges and 2 faces.
Octagon. * * * * * An octagon is 2-dimensional. The regular 3-d shape (all faces the same) is the octahedron, but a hexagonal prism also has 8 faces.
You are describing a cube. A cube has 6 square faces.
You take a look at what 2-D shape the face is, and then that's the name of the face.
This shape has 2 opposite identical faces and some other which are parallelograms is a prism. A cylinder shape has 2 circular faces and one curved face.
it is some sort of shape
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
It is a triangular prism
A prism.