pentagonal prism.
A 3d shape with 5 faces can be a square pyramid
There are two 3D shapes with five faces: Triangular prisms and rectangular pyramids.
A pyramid
There is no such 3-d shape if it also has flat faces.
pentagonal prism.
A 3d shape with 5 faces can be a square pyramid
pyramid
a triangular prism easy
There are two 3D shapes with five faces: Triangular prisms and rectangular pyramids.
cube
cube
A pyramid
There is no such 3-d shape if it also has flat faces.
A triangular pyramid.
triangular prisom
It cannot be a simply connected 3d shape because it does not satisfy the Euler characteristic.