*Answer:*

And since there are 8 exterior angles, we multiply 45 degrees * 8 and we get **360 degrees**. This technique works for every polygon, as long as you are asked to take one exterior angle per vertex.

*Answer:*

An octagon has 8 exterior **angles**. The **sum** of the **exterior** **angles** of an **octagon** is 360°. **Regular** **octagon**: An octagon in which all sides and angles are equal. Each **angle** of a **regular** **octagon** is 135°.

## Interior and exterior angles of a regular octagon assessment

## Frequently Asked Questions

### What is the exterior angle sum of an octagon?

45 degreesFor example, an eight-sided regular polygon, an octagon, has exterior angles that are **45 degrees each**, because 360/8 = 45.

### What is the exterior angle measure of one angle for a regular octagon?

A regular octagon has eight equal sides and eight equal angles. (a) Calculate the size of each exterior angle in the regular octagon. We do this by dividing 360° by the number of sides, which is 8. The answer is 360° ÷ 8 = **45°**.

### What is the angle sum of a regular octagon?

1080°The sum of the measures of the interior angles of an octagon =(8−2)180° . The sum of the measures of the interior angles of an octagon is **1080°** .

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