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Triangle Angle Calculator

Find the missing angles of a triangle when you know three sides (SSS) or two sides and an included angle (SAS).

Last Updated: July 31, 2024

Triangle Angle Calculator

Find the missing angles of a triangle based on the information you have.

Calculated Angles

Angle A

38.21°

Angle B

60.00°

Angle C

81.79°

About the Triangle Angle Calculator

This calculator finds the unknown angles of a triangle based on the information you have. The two main methods used are the Law of Cosines and the Law of Sines.

How to Use the Triangle Angle Calculator

  1. Select the type of information you have from the dropdown menu (e.g., three sides).
  2. Enter the known values for the sides and/or angles.
  3. The calculator will instantly compute the unknown angles.

Triangle Angle FAQs

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