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==Origin==
==Origin==
[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''perimetre'', from [[Latin]] ''perimetros'', from [[Greek]], from ''peri''around + ''metron'' [[measure]]
[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''perimetre'', from [[Latin]] ''perimetros'', from [[Greek]], from ''peri''around + ''metron'' [[measure]]
*[http://en.wikipedia.org/wiki/15th_century 15th Century]
*[https://en.wikipedia.org/wiki/15th_century 15th Century]
==Definitions==
==Definitions==
*1a : the [[boundary]] of a closed plane figure
*1a : the [[boundary]] of a closed plane figure
A '''perimeter''' is a [[path]] that [[surrounds]] an area. The word comes from the Greek ''peri'' (around) and meter (measure). The term may be used either for the path or its length - it can be [[thought]] of as the length of the outline of a shape. The perimeter of a [[circular]] area is called its [[circumference]].
A '''perimeter''' is a [[path]] that [[surrounds]] an area. The word comes from the Greek ''peri'' (around) and meter (measure). The term may be used either for the path or its length - it can be [[thought]] of as the length of the outline of a shape. The perimeter of a [[circular]] area is called its [[circumference]].
[[Calculating]] the perimeter has considerable [[practical]] applications. The perimeter can be used to calculate the length of fence required to [[surround]] a yard or [[garden]]. The perimeter of a wheel (its [[circumference]]) describes how far it will roll in one [[revolution]]. Similarly, the amount of string wound around a spool is related to the spool's perimeter.[http://en.wikipedia.org/wiki/Perimeter]
[[Calculating]] the perimeter has considerable [[practical]] applications. The perimeter can be used to calculate the length of fence required to [[surround]] a yard or [[garden]]. The perimeter of a wheel (its [[circumference]]) describes how far it will roll in one [[revolution]]. Similarly, the amount of string wound around a spool is related to the spool's perimeter.[https://en.wikipedia.org/wiki/Perimeter]
[[Category: Mathematics]]
[[Category: Mathematics]]