In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex.

Edge: a

Space diagonal: d

Face diagonal: d

_{f}

Radius of inscribed sphere: r

Radius of circumscribed sphere: R

Surface area: S

Volume: V

- $d=a√3$
- $d_f=a√2$
- $r=a/2$
- $R=√3/2a$
- $S=6a^2$
- $V=a^3$
- angles between faces: $π \or 180°$

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