Regular Octahedron


Also found in: Dictionary, Thesaurus, Wikipedia.

regular octahedron

[′reg·yə·lər ‚äk·tə′hē·drən]
(mathematics)
A regular polyhedron of eight faces.

Octahedron, Regular

 

one of the five regular polyhedrons. An octahedron has eight faces (triangles), 12 edges, and six vertices; at each vertex four edges meet. If a is the length of an edge, then the octahedron’s volume is Octahedron, Regular.

References in periodicals archive ?
Let us consider the regular octahedron A that is dual to the cube of Section 5 (see Figure 3).
* Further exploration may continue with a regular octahedron focusing on the centers of its faces.
It is clear that regular octahedrons are dual solids to cubes (Fig.