Answer
2 inches
Work Step by Step
A=.5rP
30=.5r(30)
.5r=1
r=2
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 8 - Test - Page 401: 16
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