supplementary angle

noun Mathematics.

either of two angles that added together produce an angle of 180°.

QUIZZES

DON’T VACILLATE! VANQUISH THIS WORD OF THE DAY QUIZ!

It’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!
Question 1 of 7
What does “vacillate” mean?
to waver in mind or opinion; be indecisive or irresolute.
to cause to be empty or unoccupied.
to assent tacitly; agree; consent.
TAKE THE QUIZ TO FIND OUT
Compare complementary angle.

Origin of supplementary angle

First recorded in 1830–40

Words nearby supplementary angle

supplemental, supplemental air, supplemental plumage, Supplemental Security Income, supplementary, supplementary angle, supplementary angles, supplementation, suppletion, suppletive, suppletory
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for supplementary angle

supplementary angle

noun

either of two angles whose sum is 180°Compare complementary angle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012