exterior angle


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exterior angle

1. an angle of a polygon contained between one side extended and the adjacent side
2. any of the four angles made by a transversal that are outside the region between the two intersected lines
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

exterior angle

[ek′stir·ē·ər ′aŋ·gəl]
(mathematics)
An angle between one side of a polygon and the prolongation of an adjacent side.
An angle made by a line (the transversal) that intersects two other lines, and either of the latter on the outside.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
There are no parallel lines, there is no exterior angle of a triangle theorem, the angles of a triangle do not add up to 180[degrees] and there are no parallelograms.
At each of these buildings students are able to take measurements with protractors and string to verify the lengths of the sides and the measures of the central, interior, and exterior angles of the structures.
Listings on www.PeterbiltRedOval.com include detailed truck information; downloadable data sheet; "share this unit with someone" feature; and, photos of the vehicle from multiple interior and exterior angles.
While floor plans reflect the exterior angles, Moriarty said designers have used unexpected interior angles to visually enlarge apartments and condos, and to maximize views.
The design extends the third-story forward, cheating distinctive exterior angles. Metal cladding and architectural elements will carry through to the back of the structure, where a new awning will be installed.