Enter the total number of sides of a polygon into the calculator to determine the exterior angle.

## Exterior Angle Formula

The following formula is used to calculate the exterior angle of a polygon.

A = 360 / N

- Where A is the exterior angle
- N is the number of sides of the polygon

## Exterior Angle Definition

An exterior angle is defined as the angle on the exterior of two tangent lines that extend passed the sides of a polygon.

## Exterior Angle Example

How to calculate an exterior angle?

**Fist, determine the number of sides.**Count the number of sides of the polygon being analyzed. For this example we will look at a hexagon that has six sides.

**Next, calculate the exterior angle.**Using the formula, we find the exterior angle to be 360/6 = 60 degrees.

## FAQ

**What is an exterior angle?**

An exterior angle is the angle measured between two tangent lines that extend off the sides of a polygon.

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