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reflex angle

American  

noun

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


Etymology

Origin of reflex angle

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Project Gutenberg

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

From Project Gutenberg