## Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage

# Chapter 7 - Section 7.3 - More about Regular Polygons - Exercises - Page 343: 18c

#### Answer

m$\angle$C=40$^{\circ}$

#### Work Step by Step

m$\angle$C=$\frac{360}{n}$ m$\angle$C=$\frac{360}{9}$ m$\angle$C=40$^{\circ}$

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