Geometry 3D

The Octahedron

The Octahedron is a regular four-sided double pyramid. Its surface consists of eight equilateral triangles and is therefore one of the five Platonic solids.

The following elements of a Octahedron are calculated if one of them is given:


 Circumradius rc = 1

          Edge a = 1,4142136
  Apothem h1 = 1,2247449
    Altitude h2 = 2
     Inradius ri = 0,57735027
     Volume V = 1,3333333
     Surface S = 6,9282032

See also:

Wikipedia: Platonic solid