Triangle Solver

Solve any triangle using known sides and/or angles. Supports SSS, SAS, ASA, and AAS cases.

Side a

Side b

Side c

Angle A (°)

Angle B (°)

Angle C (°)

Sides: a = , b = , c =

Angles: A = °, B = °, C = °

Triangle type:

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How It Works

The solver uses the Law of Cosines when two sides and an included angle are known, and the Law of Sines when at least one side-angle pair is available.

Important Notes

Angles must sum to 180°. Invalid or impossible triangles are automatically rejected.

FAQs

Can I enter all values? Yes, the tool will validate them.
Does this support right triangles? Yes, right triangles are detected automatically.