Regular Polygon Exterior Angle from Sides: 9 Number of Sides

Specific conversion page with reference context, calculator, and nearby values.

Author

Prof. Chen Wei

Math editorial contributor

Chinese AI ethics researcher at Tsinghua University, publishing extensively on algorithmic bias in hiring systems

Reviewed by

Prof. Hans Muller

Math content reviewer

German renewable energy engineer at TU Munich, pioneering grid-scale hydrogen storage solutions

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

9 Number of Sides converts to

40 deg

Use this as a quick reference for Regular Polygon Exterior Angle from Sides.

Value Details

Input: 9 Number of Sides

Output: 40 deg

Browse all reference values for Regular Polygon Exterior Angle from Sides

Regular Polygon Exterior Angle from Sides

Calculate the exterior angle of a regular polygon from the number of sides.

Calculated Result

Nearby Reference Values

Regular Polygon Exterior Angle from Sides values near 9 Number of Sides
Number of SidesExterior Angle
4 Number of Sides90 deg
5 Number of Sides72 deg
6 Number of Sides60 deg
7 Number of Sides51.428571 deg
8 Number of Sides45 deg
9 Number of Sides40 deg
10 Number of Sides36 deg
12 Number of Sides30 deg
15 Number of Sides24 deg
20 Number of Sides18 deg
24 Number of Sides15 deg

Frequently Asked Questions

Common questions about Regular Polygon Exterior Angle from Sides, formulas, and expected usage.

What does the Regular Polygon Exterior Angle from Sides calculator do?

It helps with finding turning angles for regular polygons and repeated geometric layouts.

What formula does the Regular Polygon Exterior Angle from Sides calculator use?

Regular polygon exterior angle = 360 / n.

What inputs are valid?

The number of sides must be an integer greater than or equal to 3.

When would I use this?

finding turning angles for regular polygons and repeated geometric layouts

Methodology and Review

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Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.