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Home/Mathematics/Geometry/Triangle Calculator
Math CalculatorGeometry

Triangle Calculator

Solve a triangle by entering three known values (sides and/or angles) to find all missing properties.

Updated 2025-01-154 min readCalzyra Math Team

Calculator

Enter your values below

CalculatorFree Tool

Length of side a. Leave blank if unknown.

Length of side b. Leave blank if unknown.

Length of side c. Leave blank if unknown.

Formula & Methodology

How this calculator works

Law of Cosines: c² = a² + b² - 2ab·cos(C)

This calculator uses the law of cosines and the law of sines to solve for all unknown sides and angles of a triangle.

Frequently Asked Questions

Common questions about this calculator

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