| The Compendium Geometry is an eBook providing facts, formulas and explanations about geometry. |
|
Home  Analytic Geometry 3D Solids Platonic Solids Cube (Hexahedron) |
|
| See also: Platonic Solids - Regular Polyhedra | |
 Search the VIAS Library | Index
|
  |
Cube (Hexahedron)
The cube (or hexahedron) is one of the five Platonic solids. It is composed of 6 squares linked together at right angles.
For a cube with edge length a the volume V = a3, its surface S = 6a2. The radii of the circumscribed (rc) and inscribed (ri) spheres are
rc = a
|
|
| Home Analytic Geometry 3D Solids Platonic Solids Cube (Hexahedron) |
|
/2
and
ri = a/2.
Last Update: 2010-12-06