Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 8 - Geometry - 8.6 Circles - 8.6 Exercises - Page 576: 24

Answer

Area of Hurricane Irene: 196,300 mi$^{2}$ Area of Hurricane Katrina: 34,600 mi$^{2}$

Work Step by Step

Area of a Circle: $A$ = $\pi$$d$$^{2}$/4 Therefore: $A$$_{Irene}$ = (3.14)(500 mi)$^{2}$ / 4 $A$$_{Irene}$ = 196,300 mi$^{2}$ $A$$_{Katrina}$ = (3.14)(210 mi)$^{2}$ / 4 $A$$_{Katrina}$ = 34,600 mi$^{2}$
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