Law Of Cosines Calculator
Law Of Cosines: a planned Super Calculator tool. Covers two sides and the included angle. Stub page while the tool and its worked example are prepared.
Law Of Cosines Calculator is a planned calculator in the mathematics section of Super Calculator, covering geometry and trigonometry.
What this calculator will compute
Inputs: two sides and the included angle, or three sides and angle unit.
Outputs: remaining side or angle, all angles, area and triangle inequality check.
Formula, recorded as scope and not yet verified against a primary source: c^2 = a^2 + b^2 - 2ab cos(C), reducing to the Pythagorean theorem at C equal to 90 degrees. Rearranged as cos(C) = (a^2 + b^2 - c^2)/(2ab) to find an angle from three sides.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
The stub carries noindex, nofollow and is excluded from the sitemap.