Sum of Interior Angles of Regular Polygon Calculator

Calculate Sum of Interior Angles of Regular Polygon



Formula

The formula to calculate the sum of interior angles of a regular polygon is:

\[ \text{Sum} \angle_{\text{Interior}} = (N_S - 2) \cdot \pi \]

Where:

Definition

The sum of interior angles of a regular polygon is the sum of all the interior angles of the polygon.

The number of sides of a regular polygon denotes the total number of sides of the polygon. The number of sides is used to classify the types of polygons.

Example Calculation

Let's assume the following values:

Using the formula:

\[ \text{Sum} \angle_{\text{Interior}} = (8 - 2) \cdot \pi = 18.8495559215388 \text{ radians} \]

The sum of interior angles is 18.8495559215388 radians.

Conversion Chart

Number of Sides Sum of Interior Angles (radians)
3 3.1415926536
4 6.2831853072
5 9.4247779608
6 12.5663706144
7 15.7079632679
8 18.8495559215
9 21.9911485751
10 25.1327412287
11 28.2743338823
12 31.4159265359