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circumference

circumference Distance round the boundary of a plane geometric figure, nearly always applied to a circle, for which it has the value 2πr, where r is the radius.

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"circumference." World Encyclopedia. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"circumference." World Encyclopedia. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/circumference

"circumference." World Encyclopedia. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/circumference

circumference

circumference XIV. — (O)F. circonférence — L. circumferentia; see CIRCUM-, -FEROUS.

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"circumference." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"circumference." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/circumference-1

"circumference." The Concise Oxford Dictionary of English Etymology. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/circumference-1