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Triangle angles for given triangle sides

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

This page exists due to the efforts of the following people:

Timur

Timur

Michele

Michele

A

Anton

Created: 2011-07-29 21:39:04, Last updated: 2020-11-10 15:37:27
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.

triangle.JPG



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 degenerate triangle, where side lengths violate,
a+b>c,
b+c>a,
a+c>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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Timur2020-11-10 15:37:27

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