Supplementary Angles Calculator

This calculator helps you find the supplementary angle when one angle is known. Supplementary angles are two angles whose measures add up to 180 degrees.

Input Parameters

Calculation Results

Supplementary Angle

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Where:
Supplementary Angle = 180° - Angle

Supplementary Angles Calculator Calculator Usage Guide

Learn how to use the Supplementary Angles Calculator and understand the concept of supplementary angles

What are Supplementary Angles?

Supplementary angles are two angles whose measures add up to 180 degrees. Unlike adjacent angles that share a side and vertex, supplementary angles can be anywhere as long as they add up to 180°.

How to Use This Calculator

  1. Enter the measure of one angle in degrees in the input field
  2. Click the "Calculate" button
  3. The calculator will display the supplementary angle

Example

If you know that one angle measures 120°, you can calculate its supplementary angle:

Supplementary Angle = 180° - 120° = 60°

Applications

Supplementary angles are used in various fields including:

  • Geometry and trigonometry
  • Architecture and construction
  • Art and design
  • Navigation and surveying