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Triangle angles for given triangle sides

This calculator computes triangle angles for given triangle sides using cosine law

person_outlineTimurschedule2011-07-29 21:39:04
Creative Commons Attribution/Share-Alike License 3.0 (Unported)

This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work https://planetcalc.com/534/. Also, please do not modify any references to the original work (if any) contained in this content.

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This calculator computes triangle angles for given triangle sides using cosine law.

Cosine law:
c^2=a^2+b^2-2ab cos \gamma,
thus
\gamma = arccos( \frac{a^2+b^2-c^2}{2ab} )

For singular triangle, where side lengths violate
a+b %3E c,
b+c %3E a,
a+c %3E b.

the results will be zeroes.

PLANETCALC, Triangle angles for given triangle sides

Triangle angles for given triangle sides

Digits after the decimal point: 2
Angle alpha (degrees)
 
Angle beta (degrees)
 
Angle gamma (degrees)
 

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Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Triangle angles for given triangle sides

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