Angle Angle Side Calculator

Angle Angle Side Calculator calculator can be used to find the missing angle and sides of a triangle when two angles and one side are known.

Input Parameters

Calculation Results

Calculation Formula

Using the Law of Sines:

sin(A)/a = sin(B)/b = sin(C)/c

Where:
A, B, C are angles of the triangle
a, b, c are sides opposite to angles A, B, C respectively

Angle Angle Side Calculator Calculator Usage Guide

Learn how to use the Angle Angle Side Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the two known angles (Angle A and Angle B) in degrees.
  2. Enter the length of the side opposite one of the known angles (Side A).
  3. Click the "Calculate" button to find the missing angle (Angle C) and the lengths of the other two sides (Side B and Side C).

Working Principle

The calculator uses the Law of Sines, which states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all three sides and angles of the triangle. This relationship is expressed as:

sin(A)/a = sin(B)/b = sin(C)/c

Where A, B, C are angles of the triangle and a, b, c are the lengths of the sides opposite these angles, respectively.