Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 7 - Section 7.3 - More about Regular Polygons - Exercises - Page 333: 26

Answer

8 sides

Work Step by Step

I=c+90 $\frac{180(n-2)}{n}$=$\frac{360}{n}$+90 180n-360=360+90n 90n=720 n=8
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