round angle

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English

Noun

round angle (plural round angles)

  1. (geometry) An angle of 360 degrees; a full circle.
    • 1893, William Benjamin Smith, Introductory Modern Geometry of Point, Ray, and Circle, MacMillan, p 31:
      Two angles whose sum is a straight angle are called supplemental; two angles whose sum is a round angle we may call explemental.

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