Interior Angle Calculator

Interior Angle Calculator calculator can be used to calculate the interior angles of regular polygons based on the number of sides.

Input Parameters

Enter the number of sides (minimum 3 for a polygon)

Calculation Results

Calculation Formula

Interior Angle = (n-2) × 180° / n

Where:
n = number of sides
The formula calculates the measure of each interior angle in a regular polygon.

Result

Enter the number of sides and click Calculate

Interior Angle Calculator Calculator Usage Guide

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

How to Use

  1. Enter the number of sides for the regular polygon (minimum 3). A triangle has 3 sides, a square has 4 sides, etc.
  2. Click the "Calculate" button to compute the interior angle
  3. The result will be displayed in degrees
  4. Use the "Reset" button to clear the input and start over

Understanding Regular Polygons

A regular polygon is a polygon where all sides and all interior angles are equal. This calculator specifically calculates the interior angle for regular polygons only.

Examples

  • Triangle (3 sides): Interior angle = 60°
  • Square (4 sides): Interior angle = 90°
  • Pentagon (5 sides): Interior angle = 108°
  • Hexagon (6 sides): Interior angle = 120°

Formula Explanation

The calculator uses the formula: Interior Angle = (n-2) × 180° / n, where n is the number of sides.