Triangle Solver

Calculate the unknown sides, angles, area, and perimeter of a triangle.

Enter Known Values

Enter at least three values, including at least one side, to solve the triangle.

Sides

Side a

Side b

Side c

Angles (in degrees)

Angle A

Angle B

Angle C

How It Works

This solver uses the Law of Sines and the Law of Cosines to find the missing properties of a triangle. Ensure Angle A is opposite Side a, B opposite b, and C opposite c.