Answer
$A =86in^2$
Work Step by Step
$A = 20^2 - 3.14*(\frac{20}{2})^2 = 20^2 - 3.14*10^2 = 400 - 3.14*100 = 400 - 314 = 86in^2$
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: 18
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