A rather simplistic answer is: A cube or cuboid shape has (usually) 2 sides, 2 ends, 1 top and 1 bottom.
heptahedron
A tetrahedron.
A 3d shape with 5 faces can be a square pyramid
It is called a Triacontakaidigon.
The 3d shape that have five faces would be a triangular prism **************** or a pyramid
rectangular prism
An irregular polyhedron if it has plane faces. If not, then there usually will not be a name for it.
It is important to learn and remember the name of 3D shapes. A 19 faced 3d shape is called a nonadecahedron.
The simplest such shape is PYRAMID.
A believe this is a cylinder (like the shape of a can), but there might be others.
A OctahedronThis shape has 8 faces.
3d shape Well actually it is a Cube