Triangle Solver

Solve triangles using any combination of sides and angles with complete geometric analysis.

Triangle Input
Enter known sides and angles or coordinate points
Triangle Solution
Complete triangle properties and analysis

Enter triangle data to see solution

About this calculator

Triangle Solver: A geometry calculator for solving triangle sides, angles, and area.

How it works

  • Choose the known-value setup such as SSS, SAS, or ASA.
  • Enter side lengths and angle values with units.
  • The tool solves missing parts and derived triangle properties.