complementary angle

noun Mathematics.
either of two angles that added together produce an angle of 90°. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To Complementary Angles
World English Dictionary
complementary angle
Compare supplementary angle either of two angles whose sum is 90°

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
complementary angles   (kŏm'plə-měn'tə-rē)  Pronunciation Key 

(click for larger image in new window)

Two angles whose sum is 90°.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Students determine measurements of complementary angles and congruency between multiple figures.
Explain and use the relationship between the sine and cosine of complementary angles.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature