Answer
20.264 cm
Work Step by Step
$V = 2\pi^{2}r^{2}R$
Re-write the equation
$R = \frac{V}{2\pi^2r^2}$
r = 0.5, V = 100
$R = \frac{100}{2\pi^2\times (0.5)^2} = 20.2642367$
Round
20.264
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.4 Rewrite Equations and Formulas - 1.4 Exercises - Problem Solving - Page 32: 38b
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