a triangular pyramid
A tetrahedron (4 faces) and an icosahedron (20).
Just one: a tetrahedron or triangular pyramid.
3d shapes with six faces are called hexahedra.
2 squares & 4 rectangles.
The 3D shapes that have all their faces equal to their base are known as regular polyhedra. Specifically, these include the tetrahedron (4 triangular faces), cube (6 square faces), octahedron (8 triangular faces), dodecahedron (12 pentagonal faces), and icosahedron (20 triangular faces). Each of these shapes features congruent faces that exhibit symmetry.
cylinder
There are infinitely many shapes that do.
Hexagonal prism has percandicular faces
cylinder
ur maw
A cube has 6 faces
There are an infinite number of 3d shapes with more than 20 faces.