Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Appendix C - C - Exercise Set - Page 686: 19

Answer

$196$ square inches

Work Step by Step

The surface area $(S.A.)$ of a sphere is given by the formula: $S.A.=4\pi{r^2}$ where $r$=radius The given sphere has a radius of 7 inches. Using the formula above gives: $S.A.=4\pi(7^2) \\S.A.=4\pi(49) \\S.A.=196\pi$ Therefore, the surface area of the sphere is $196$ square inches.
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