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vertical angles

plural noun

  1. geometry the pair of equal angles between a pair of intersecting lines; opposite angles Also calledvertically 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


vertical angles

/ vûrtĭ-kəl /

  1. Two angles formed by two intersecting lines and lying on opposite sides of the point of intersection.


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Example Sentences

When much accuracy is not required vertical angles can be measured by means of a quadrant of simple construction.

Vertical angles were always measured in both directions with the exception of the above-mentioned cases.

The pupil who cannot see the equality of vertical angles intuitively better than by the use of the protractor is abnormal.

He does not see why vertical angles should be proved equal when he knows that they are so by looking at the figure.

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vertical anglevertical circle