# vertical angle

- one of two opposite and equal angles formed by the intersection of two lines.

## Origin of vertical angle^{}

First recorded in 1565–75

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

# vertical angles

- geometry the pair of equal angles between a pair of intersecting lines; opposite anglesAlso called: vertically opposite angles

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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# 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.