Difference between revisions of "Complementary angles"

(Diagram)
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===Merriam-Webster===
 
===Merriam-Webster===
 
Two angles that add up to 90 degrees
 
Two angles that add up to 90 degrees
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==Algebra==
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If <math>\angle A</math> is supplementary to <math>\angle B</math>, <math>\angle A + \angle B = 180</math> <math>degrees</math>
  
 
==Related Topics==
 
==Related Topics==

Revision as of 21:02, 3 January 2020

Diagram

[asy] import olympiad; size(150); pair D = (0, 10), C = (10, 5), B = (10, 0), A = (0, 0); draw(A--B); draw(C--A); draw(D--A); label("$A$", A, SW); label("$B$", B, SE); label("$C$", C, W); label("$D$", D, NE); [/asy]

As long as $\angle BAD$ is a right angle, $\angle BAC$ and $\angle CAD$ are complementary angles to each other.

Definition

Bing/Google

Either of two angles whose sum is 90°

Merriam-Webster

Two angles that add up to 90 degrees

Algebra

If $\angle A$ is supplementary to $\angle B$, $\angle A + \angle B = 180$ $degrees$

Related Topics

Supplementary

Right angles