reflex angle

noun

Geometry.

1. an angle greater than 180° and less than 360°.

Word History and Origins

Origin of reflex angle¹

First recorded in 1895–1900

Example Sentences

Thus ∠A is read "BAC," the reflex angle on the outside of the triangle being read "CAB."

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It is helpful in trigonometry, and it saves confusion in the case of a reflex angle in a polygon.

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