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Triangle angles for given triangle sides

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

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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 triange, 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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