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8 Words That Are Older Than You Think

vertical angle

noun, Geometry
1.
one of two opposite and equal angles formed by the intersection of two lines.
Origin
1565-1575
1565-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for vertical angles
  • For measurements on the slope the vertical angles are determined by use of a clinometer or a transit.
  • vertical angles tend to be in compression while diagonal angles tend to be in tension.
  • Elevation differences were determined by measuring vertical angles.
  • Using what they know about vertical angles and tracing paper, find the other angles.
  • vertical angles were not recorded, or if they were they cannot be discerned in the measurement notes.
  • Differences in elevations are determined by measuring vertical angles and slope distances.
  • Distances to whales were determined by measuring vertical angles with hand-held inclinometers.
British Dictionary definitions for vertical angles

vertical angles

plural noun
1.
(geometry) the pair of equal angles between a pair of intersecting lines; opposite angles Also called vertically opposite angles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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vertical angles in Science
vertical angles
  (vûr'tĭ-kəl)   
Two angles formed by two intersecting lines and lying on opposite sides of the point of intersection.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Value for vertical

13
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