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reentrant angle

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reentering angle

–noun Geometry.
an interior angle of a polygon that is greater than 180°.
Also called reentrant angle.


Origin:
1690–1700
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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reentrant angle also re-entrant angle  


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n.  In an irregular polygon, an interior angle that is greater than 180° and whose apex faces into the polygon.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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