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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Right Triangle Calculator

Solve a right triangle from any two known values. Find all sides, all angles, perimeter, and area instantly with step-by-step formulas shown. Free calculator, no sign-up needed.

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