interior angle

noun
|Updated on: 28 Apr 2018

Definition of interior angle

1 : the inner of the two angles formed where two sides of a polygon come together
2 : any of the four angles formed in the area between a pair of parallel lines when a third line cuts them

Recent Examples of interior angle from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'interior angle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of interior angle

illustration of interior angle

First Known Use of interior angle

1756

in the meaning defined at sense 1

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