A 12 sided 3D shape is called a dodecahedron.
The 3D shape that has 12 faces is called a dodecahedron. It is a polyhedron with 12 regular pentagonal faces. Each face of a dodecahedron is a regular polygon with five sides of equal length and five equal interior angles.
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?
A dodecahedron is a 3-d shape with 12 faces that are regular pentagons.
That is a Dodecahedron.
A 12 sided 3D shape is called a dodecahedron.
dodecahedron
Tetrahedron
Icosahedron
A 3-d shape made from pentagonal faces is a dodecahedron (12 sides).
A 3d shape can have infinite sides
A dodecahedron is a three-dimensional shape with 12 pentagonal 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.
A triangular dipyramid.
Dodecahedron.
A 2D 12 sided shape is called a DodecagonAnd it's called a Dodecahedron if it's 3D.