Math
Law of Cosines Calculator
Third side from two sides and the included angle (SAS).
Side c
Amortization schedule
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This free Law of Cosines Calculator covers Third side from two sides and the included angle (SAS).
c² = a² + b² − 2ab cos C. Other math tools are linked below.
Law of Cosines Calculator — how it works
Third side from two sides and the included angle (SAS). Typical inputs are Side a, Side b and Included angle C (°). How it works beside the form states the identity the Law of Cosines Calculator applies.
FAQ
How do I use the Law of Cosines Calculator?
Open the Law of Cosines Calculator, fill Side a, Side b and Included angle C (°), and read the result. c² = a² + b² − 2ab cos C.
What formula does the Law of Cosines Calculator use?
The Law of Cosines Calculator uses the identity in How it works. In words: c² = a² + b² − 2ab cos C.
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