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Sphere


 

:For other uses, see sphere (disambiguation).

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A sphere is a perfectly symmetrical geometrical object. In mathematics, the term refers to the surface or boundary of a ball, but in non-mathematical usage, the term is used to refer either to a three-dimensional ball or to its surface. This article deals with the mathematical concept of sphere.

Related Topics:
Symmetrical - Geometrical - Mathematics - Surface - Boundary - Ball

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