Answer
a) $r = 15mi$
b) $C = 94.2mi$
c) $A = 706.5mi^2$
Work Step by Step
a) $r = 30\div2 = 15mi$
b) $C = 2*3.14*15 = 94.2mi$
c) $A = 3.14*15^2 = 706.5mi^2$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 8 - Geometry - Summary Exercises - Perimeter, Circumference and Area - Page 578: 14
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