Law of Cosines Calculator

Find any side or angle of a triangle using the Law of Cosines. Enter SAS to find the missing side, or SSS to find all angles. Full solutions with formulas shown. Free tool.

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Law of Sines Calculator

Solve oblique triangles with the Law of Sines. Enter AAS, ASA, or SSA values and see full results for all sides and angles. Ambiguous case handled automatically. Free calculator.

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