Difference between revisions of "Complementary angles"
Potato2017 (talk | contribs) (→Property) |
Potato2017 (talk | contribs) (→Diagram) |
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pair D = (0, 10), C = (10, 5), B = (10, 0), A = (0, 0); | pair D = (0, 10), C = (10, 5), B = (10, 0), A = (0, 0); | ||
draw(A--B); draw(C--A); draw(D--A); | draw(A--B); draw(C--A); draw(D--A); | ||
+ | markscalefactor=0.1; | ||
+ | draw(rightanglemark((0,10),(0,0),(10,0))); | ||
label("$A$", A, SW); | label("$A$", A, SW); | ||
label("$B$", B, SE); | label("$B$", B, SE); | ||
− | label("$C$", C, | + | label("$C$", C, NE); |
label("$D$", D, NE); | label("$D$", D, NE); | ||
</asy> | </asy> |
Revision as of 17:12, 4 January 2020
Contents
[hide]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); markscalefactor=0.1; draw(rightanglemark((0,10),(0,0),(10,0))); label("$A$", A, SW); label("$B$", B, SE); label("$C$", C, NE); label("$D$", D, NE); [/asy]](http://latex.artofproblemsolving.com/a/7/5/a75509ef276eae8b460d9b8cba0d1f1ad6b1b2ba.png)
As long as is a right angle,
and
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
Properties and Examples
Property
is complementary to
if and only if
Examples
If is
and
is
, angle A and angle B are complementary since
If is
and
is
, angle A and angle B are not complementary since
, and not
.
Related Topics
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