A cube has 12 edges as does an octahedron and those are the two platonic solids (convex polyhedra with congruent regular polygons as faces where the same number of faces meet at each vertice) with 12 edges.
dodecahedron * * * * * A dodecahedron has 12 FACES, not 12 edges!
12 edges
A cube and a rectangle all have 12 edges.
A cube has only 8 edges. * * * * * Actually, a cube has 12 edges, NOT 8.
A shape with more than 12 edges is a dodecahedron which has 30 edges
A rectangular prism (cuboid) and a hexagon-based pyramid, for example, both have 12 edges. Of the five Platonic solids, an octahedron and a cube each have 12 edges.
It is an octahedron which is one of the Platonic Solids having 8 equilateral triangular faces and 12 edges.
a cube has 8 edges
A dodecahedron is one of the Platonic Solids which has 12 pentagonal faces, 30 edges and 20 vertices
A cube and a cuboid of which both have 8 vertices, 12 edges and 6 faces
There are different numbers on the different platonic solids.
There are only 5 known regular Platonic solids and they and their properties are:- 1 Tetrahedron: (pyramid) 4 equilateral triangle faces, 6 edges and 4 vertices 2 Hexahedron (cube) 6 square faces, 12 edges and 8 vertices 3 Octahedron: 8 equilateral triangle faces, 12 edges and 6 vertices 4 Dodecahedron: 12 regular pentagon faces, 30 edges and 20 vertices 5 Icosahedron: 20 equilateral triangle faces, 30 edges and 12 vertices All of them can be inscribed inside a sphere.
spheres
12 edges in a cube.
Symmetry. Perfect symmetry. Equality of angles, edges and vortices.
Spheres
1~Tetrahedron *4 faces (made of equilateral triangles) *6 edges *5 vertices 2~Hexahedron (cube) *6 faces (made of squares) *12 edges *8 vertices 3~Octrahedron *8 faces (made up of equilateral triangles) *12 edges *6 vertices 4~Icosahedron *20 faces (made of equilateral triangles) *30 edges *12 verticies 5~Dodecahedron *12 faces (made of pentagons) *30 edges *20 vertices.