A Cube or Hexahedron
6 edges.
pentagon
A pentagonal pyramid.
It has 6 faces, 12 edges and 8 corners or vertices
A quadrilateral based dipyramid.
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 3D shape that has 6 edges is called a hexagonal prism.
A Cube or Hexahedron
There is no 3d shape made up of octagons. An octahedron can be one of several different shapes - but without ANY octagonal faces. For example, A hexagonal pyramid (8 faces, 18 edges, 12 vertices) A heptagonal pyramid (8 faces, 14 edges, 8 vertices) A quadrilateral dipyramid (8 faces, 12 edges, 6 vertices)
A quadrilateral prism has 12 edges, 8 vertices and 6 faces.
6 edges.
No. A quadrilateral is a 2-dimensional shape with 4 edges, 1 face and 4 vertices.
It has 12 edges and 6 faces
6 faces, 12 edges
A cube or a cuboid could have 12 edges, 8 vertices, and 6 faces.
It has 12 edges, 6 faces and 8 vertices