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Octahedron
Regular Octahedron

A polyhedron with eight faces. A regular octahedron has faces that are all equilateral triangles. A regular octahedron looks like it was made by gluing together the bases of two square-based pyramids.

Note: It is one of the five platonic solids.

Regular Octahedron

a = length of an edge

Volume =

Surface Area =

Octahedron Image Rotate me if your browser is Java-enabled.

 

 


  this page updated 21-feb-16
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons
NCTM Web Bytes December 2004 Web Bytes March 2005 Web Bytes