interior angle


nounGeometry.
  1. an angle formed between parallel lines by a third line that intersects them.

  2. an angle formed within a polygon by two adjacent sides.

Origin of interior angle

1
First recorded in 1750–60

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use interior angle in a sentence

British Dictionary definitions for interior angle

interior angle

noun
  1. an angle of a polygon contained between two adjacent sides

  2. any of the four angles made by a transversal that lie inside the region between the two intersected lines

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

Scientific definitions for interior angle

interior angle

[ ĭn-tîrē-ər ]


  1. Any of the four angles formed inside two straight lines when these lines are intersected by a third straight line.

  2. An angle formed by two adjacent sides of a polygon and included within the polygon. Compare exterior angle.

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