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Triangle Calculator

Calculate all triangle properties from any 3 known values

Calculate all properties of a triangle by entering any 3 known values (sides or angles). Uses Law of Sines, Law of Cosines, and Pythagorean theorem to find missing values. Shows area, perimeter, inradius, circumradius, and triangle visualization.

Instructions: Enter any 3 values (at least one must be a side). Leave other fields empty.

Angles: Enter in degrees (0-180). Sides: Must be positive numbers.

Sides
Angles (in degrees)