This article is a stub. Help us out by polyhedron.. An octahedron is a type of
In Euclidean geometry, an octahedron is any polyhedron with eight faces. The term is most frequently to refer to a polyhedron with eight triangular faces, with three meeting at each vertex. The regular octahedron has eight equilateral triangle faces and is one of the five Platonic solids. It has six vertices, twelve edges, and is dual to the cube.
- The surface area of a regular octahedron with side length is
- The volume of a regular octahedron with side length is