In geometry, an octahedron is a polyhedron with eight faces. A regular octahedron is a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. A regular octahedron is the dual polyhedron of a cube. 

 

Length of edge (a): 1.00

Volume: (√2)/3 × a³ = 0.47

Surface area: 2 × √3 × a² = 3.46

Number of edges: 12

Number of vertices: 6

Number of faces: 8

Side shape: Triangle

Shapes with similar faces: Tetrahedron, Icosahedron, 

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