Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 7 - Section 7.3 - More about Regular Polygons - Exercises - Page 344: 23

Answer

6 sides

Work Step by Step

c=$\frac{360}{n}$ I=$\frac{180(n-2)}{n}$ I=c+60 $\frac{180(n-2)}{n}$=$\frac{360}{n}$+60 180n-360=360+60n 120n=720 n=6
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