Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 8 - Review Exercises - Page 385: 18b

Answer

108$^{\circ}$

Work Step by Step

I=$\frac{180(n-2)}{n}$ I=$\frac{180(5-2)}{5}$ I=36(3) I=108$^{\circ}$
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