Triangle Calculator

Calculate triangle properties including sides, angles, area, perimeter, height, and median with detailed diagrams. Provide any 3 values including at least one side for complete analysis.

How to Use the Triangle Calculator

To solve a triangle, you need at least 3 values including at least one side:

  • Enter any combination of sides (a, b, c) and angles (A, B, C)
  • Choose between degrees or radians for angle measurements
  • For radians, you can use values like π/2, π/4, etc.
  • The calculator will solve for all unknown values
  • All angles in a triangle must sum to 180° (or π radians)
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Sides

Angles

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Frequently Asked Questions About Triangle Calculations