Elementary Geometry for College Students (5th Edition)

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

Chapter 8 - Review Exercises - Page 398: 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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