apothem
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ap·o·them
(ăp′ə-thĕm′)n.
The perpendicular distance from the center of a regular polygon to any of its sides.
[apo- + Greek thema, something laid down; see theme.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
apothem
(ˈæpəˌθɛm)n
(Mathematics) the perpendicular line or distance from the centre of a regular polygon to any of its sides
[C20: from apo- + Greek thema, from tithenai to place]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ap•o•them
(ˈæp əˌθɛm)n.
a perpendicular from the center of a regular polygon to one of its sides.
[1855–60; < French apothème]
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