Cylinders
Only one; a triangle is a 2D shape, not a 3D shape. Usually only 3D (or more) shapes are considered to have 'faces'.
A rectangular prism is the only shape that is made up from only rectangular faces. But there are countless shapes which contain rectangular faces along with other shapes.
cylinder
There are several of these. For example, dice.See related link below for more shapes
Polyhedra (singular = polyhedron).
Cylinders
2d shapes are shapes that can only be seen from the front unlike 3d shapes and they are flat
2d shapes are shapes that can only be seen from the front unlike 3d shapes and they are flat
2d shapes are shapes that can only be seen from the front unlike 3d shapes and they are flat
Only one; a triangle is a 2D shape, not a 3D shape. Usually only 3D (or more) shapes are considered to have 'faces'.
A rectangular prism is the only shape that is made up from only rectangular faces. But there are countless shapes which contain rectangular faces along with other shapes.
3d shapes with six faces are called hexahedra.
cylinder
There are several of these. For example, dice.See related link below for more shapes
There are infinitely many shapes that do.
Hexagonal prism has percandicular faces