Cube (geometry)
A cube, or regular hexahedron, is a solid composed of six square faces. A cube is dual to the regular octahedron and has octahedral symmetry. A cube is a Platonic solid.
Formulas
For a cube with edge-length 
, we have:
- Space diagonal:
- Surface area:
- Volume:
- Radius of circumscribed sphere:
- Radius of sphere tangent to edges:
- Radius of inscribed sphere:
