Difference between revisions of "Cube (geometry)"
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==Formulas== | ==Formulas== | ||
For a cube with [[edge]]-[[length]] <math>s</math> has: | For a cube with [[edge]]-[[length]] <math>s</math> has: | ||
| − | * Four [[ | + | * Four space [[diagonal]]s of length <math>s\sqrt{3}</math> |
* [[Surface area]] <math>6s^2</math> | * [[Surface area]] <math>6s^2</math> | ||
* [[Volume]] <math>s^3</math> | * [[Volume]] <math>s^3</math> | ||
Revision as of 21:03, 7 September 2007
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.
Formulas
For a cube with edge-length 
has:
- Four space diagonals of length
- Surface area
- Volume
- A circumscribed sphere of radius
- An inscribed sphere of radius
- A sphere tangent to all of its edges of radius
See also
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