Answer
Yes
Work Step by Step
I=$\frac{(n-2)180}{n}$
140=180-$\frac{360}{n}$
40=$\frac{360}{n}$
n=$\frac{360}{40}$
n=9
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 2 - Section 2.5 - Convex Polygons - Exercises - Page 102: 43b
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