Prealgebra (7th Edition)

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

Chapter 9 - Section 9.2 - Perimeter - Exercise Set: 37

Answer

Circumference = 16$\pi$ mi The approximation of the circumference = 50.24 $mi^{2}$

Work Step by Step

Circumference = 2 $\times$ $\pi$ $\times$ radius = 2 $\times$ $\pi$ $\times$ r Circumference = 2 $\times$ $\pi$ $\times$ 8 = 16$\pi$ mi The approximation of the circumference = 2 $\times$ (3.14) $\times$ 8 = 50.24 $mi^{2}$
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