# exterior angle

Also found in: Thesaurus, Encyclopedia, Wikipedia.

## exterior angle

*n.*

**1.**The angle between any side of a polygon and an extended adjacent side.

**2.**Any of the four angles that do not include a region of the space between two lines intersected by a transversal.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## exterior angle

*n*

**1.**(Mathematics) an angle of a polygon contained between one side extended and the adjacent side

**2.**(Mathematics) any of the four angles made by a transversal that are outside the region between the two intersected lines

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## exte′rior an′gle

*n.*

**1.**an angle formed outside parallel lines by a third line that intersects them.

**2.**an angle formed outside a polygon by one side and an extension of an adjacent side; the supplement of an interior angle of the polygon.

[1885–90]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

**exterior angles**

Angles 1, 2, 7, and 8 are exterior angles. Angles 1 and 8 and angles 2 and 7 are alternate exterior angles.

## ex·te·ri·or angle

(ĭk-stîr′ē-ər) The angle formed between a side of a polygon and an extended adjacent side. Compare interior angle.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonyms

**Legend:**Switch to new thesaurus

Noun | 1. | exterior angle - the supplement of an interior angle of a polygonangle - the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians hip - (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof |

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

Translations

## exterior angle

*n*(Math) → Außenwinkel

*m*

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.

Link to this page: