Answer
10.2 feet is the radius
Work Step by Step
$324 = \pi*r^2$
$324/\pi = \pi*r^2$
$103.132 = r^2$
$\sqrt {103.132} = \sqrt {r^2}$
$r = 10.15, -10.15$
We can't have a negative length, so $r \ne-10.15$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 9 - Quadratic Functions and Equations - Mid-Chapter Quiz - Page 560: 17
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