Answer
5.6 ft
Work Step by Step
$A = 100$
$A = \pi*r^2$
$100 = \pi * r*r$
$100\pi = \pi * r*r/\pi$
$31.830988 = r^2$
$\sqrt {31.830988} = \sqrt {r^2}$
$5.64 = r$
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 - 9-3 Solving Quadratic Equations - Practice and Problem-Solving Exercises - Page 551: 36
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