# Difference between revisions of "Cube (geometry)"

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* An [[inscribe]]d sphere of radius <math>\frac{s}{2}</math> | * An [[inscribe]]d sphere of radius <math>\frac{s}{2}</math> | ||

* A sphere [[tangent]] to all of its edges of radius <math>\frac{s\sqrt{2}}{2}</math> | * A sphere [[tangent]] to all of its edges of radius <math>\frac{s\sqrt{2}}{2}</math> | ||

+ | * A regular tetrahedron can fit in exactly two ways inside a cube | ||

==See also== | ==See also== |

## Latest revision as of 12:07, 10 April 2021

A **cube**, or regular **hexahedron**, is a solid composed of six square faces. A cube is dual to the regular octahedron and has octahedral symmetry. A cube is a Platonic solid. All edges of cubes are equal to each other.

## Formulas

- Four space diagonals of same lengths ()
- Surface area of . (6 sides of areas .)
- Volume ()
- A circumscribed sphere of radius
- An inscribed sphere of radius
- A sphere tangent to all of its edges of radius
- A regular tetrahedron can fit in exactly two ways inside a cube

## See also

*This article is a stub. Help us out by expanding it.*