A 3-d shape is a body that exists in three dimensions (often called height, length, width).
The faces are the planar polygonal surfaces that delimit the body.
Planar (existing in a plane, that means flat)
Polygonal (having several edges, such as square, triangle, etc.)
A cube is a 3D shape, the surface is six squares.
cylinder
cylinder
There are an infinite number of 3d shapes with more than 20 faces.
A tetrahedron (4 faces) and an icosahedron (20).
Spheres
3d shapes with six faces are called hexahedra.
cylinder
There are infinitely many shapes that do.
Hexagonal prism has percandicular faces
A cube has 6 faces
ur maw
cylinder
There are an infinite number of 3d shapes with more than 20 faces.
A tetrahedron (4 faces) and an icosahedron (20).
they are: ---sided pyramids and triangular prisms and 20 sided 3d shapes
dodecahedron
PYRAMID