• synonyms

complementary angle

noun Mathematics.

either of two angles that added together produce an angle of 90°.


“Compliment” vs. “Complement”: How To Pick The Right WordCompliment and complement are commonly confused terms because they're pronounced alike and originally shared some meanings ...

Nearby words

complementally, complementarity, complementarity principle, complementary, complementary air, complementary angle, complementary angles, complementary base, complementary cells, complementary color, complementary colour Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for complementary angle

complementary angle


either of two angles whose sum is 90°Compare supplementary 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