The Compendium Geometry is an eBook providing facts, formulas and explanations about geometry. 
Home Analytic Geometry 3D Solids Platonic Solids Octahedron  
See also: Platonic Solids  Regular Polyhedra  
Search the VIAS Library  Index  
OctahedronThe regular octahedron is a square dipyramid which consists of eight equilateral triangular faces and is one of the Platonic solids. For an octahedron with edge length a the height h is Its volume V is given by its surface is
The radii of the circumscribed (r_{c}) and inscribed (r_{i}) spheres are and


Home Analytic Geometry 3D Solids Platonic Solids Octahedron 