Difference between revisions of "Perimeter"
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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://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 | ||
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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.[ | + | [[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]] | ||
Latest revision as of 02:16, 13 December 2020
Origin
Middle English perimetre, from Latin perimetros, from Greek, from periaround + metron measure
Definitions
- 1a : the boundary of a closed plane figure
- b : the length of a perimeter
- 2: a line or strip bounding or protecting an area
- 3: outer limits —often used in plural
- 4: the part of a basketball court outside the three-point line
Description
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.[1]
