Find the size of an exterior angle of a regular nonagon (a 9 sided figure).

How do I find it?

The sum of the exterior angles of a regular polygon is 360º

So divide 360 by 9

To find the size of an exterior angle of a regular nonagon, you can use the formula:

Exterior Angle = 360 degrees / Number of sides

In this case, the number of sides is 9 since it is a regular nonagon.

Therefore, the size of an exterior angle of a regular nonagon is:

Exterior Angle = 360 degrees / 9 sides
= 40 degrees