Tetrahedron
A 3d shape can have infinite sides
A triangular dipyramid.
sides are the face of a 3d shape and verticies are the corner of the shape
A septadecahedron has 17 sides to it.
the name of a 20 sided 3d shape is called a icosahedron
Tetrahedron
A 3d shape can have infinite sides
a cube or a dodecahedron * * * * * Not a cube, which has only six sides!
A 3d shape with 10 sides is called a decahedron. I have added a link with some pictures of them. As you can see they look very different but all have 10 sides or faces.
well. it is called icosahedron
A triangular dipyramid.
sides are the face of a 3d shape and verticies are the corner of the shape
square
A quadrilateral is a plane or 2d figure with four sides. A 3d shape (object) has a name ending with -hedron, eg a tetrahedron which is a four sided 3d shape. A 3d quadrilateral has no meaning. Sides (edges) do exist in 3d shapes, but a more pertinent attribute is faces. Do you mean by "3d quadrilateral" a 3d shape which has a quadrilateral as a base and at most 4 or 5 other sides, ie a pentahedron (usually called a square pyramid) or a hexahedron (some types of which are called cuboids and cubes)? Please re-ask using consistent terminology, eg What is a 3d shape with one pair of parallel faces and 6 faces?
17
That is a Dodecahedron.