round angle

noun

round angle

noun

1

Geometry, Mathematics, Sciences An angle of 360 degrees; a full circle.

Two angles whose sum is a straight angle are called supplemental; two angles whose sum is a round angle we may call explemental.1893, William Benjamin Smith, Introductory Modern Geometry of Point, Ray, and Circle, MacMillan, page 31:

Synonyms: complete angle, full angle, perigon
Related terms: right angle

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.