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Pi

Revision as of 23:08, 20 June 2006 by Captain Sugar (talk | contribs) (→‎Definition)

Definition

Pi is an irrational number. It is the ratio of a circle's circumference, or perimeter, to its diameter. It is roughly equal to 3.141592653. The number pi is usually only useful when dealing with circles, spheres, and discs.

See Also

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