Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 5 - Test - Page 406: 26


$\approx$56.52 miles

Work Step by Step

The formula for circumference of a circle is C = 2$\pi$r, where $\pi$ $\approx$ 3.14 and r is the radius. In this problem, the radius is given to be 9 miles. Therefore, plug 9 into the equation for "r" and then solve. See work below.
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