# Chapter 7 - Section 7.3 - More about Regular Polygons - Exercises - Page 344: 25a

Yes

#### Work Step by Step

All polygons have angles adding up to 360 degrees. Thus, we see if there are an integer number of angles of 40 degrees that add up to 360 degrees: $40x = 360 \\ x = 9$ Since x is an integer, it follows that there is a 9 sided polygon that this is true for.

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