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Polyhedra (singular = polyhedron).
Such a shape does not exits. See the attached link for all 3d shapes with 6 plane faces.
There are infinitely many shapes that do.
Curved and flat faces.
triangular pyramid and cube.
Polyhedra (singular = polyhedron).
Cylinders
3d shapes with six faces are called hexahedra.
There are several of these. For example, dice.See related link below for more shapes
cylinder
Such a shape does not exits. See the attached link for all 3d shapes with 6 plane faces.
There are infinitely many shapes that do.
Hexagonal prism has percandicular faces
The special features of 3D shapes are they all are 3D which means they are fat but 2D shapes are flat they can not stand up.
cylinder
ur maw
A cube has 6 faces