# vertical angle

### noun Geometry.

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

## Nearby words

## Origin of vertical angle

First recorded in 1565–75

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## British Dictionary definitions for vertical angles

## vertical angles

### pl n

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
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

## Science definitions for vertical angles

## 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.