#### Answer

$64\pi$ square inches

#### Work Step by Step

Let $A$ be the surface area of a sphere.
Let $r$ be the radius of a sphere.
$A=kr^2$
$A=36\pi ; r=3$
$36\pi=k(3)^2$
$k=4\pi$
$A=4\pi r^2$
$r=4$
$A=4\pi (4)^2$
$A=64\pi$ square inches

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$64\pi$ square inches

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