Answer
a) $r = 4.5ft$
b) $C = 28.3ft$
c) $A = 63.6ft^2$
Work Step by Step
a) $r = 9\div2 = 4.5ft$
b) $C = 2*3.14*4.5 =28.3ft$
c) $A = 3.14*4.5^2 = 63.6ft^2$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 8 - Geometry - Summary Exercises - Perimeter, Circumference and Area - Page 580: 15
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