Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 11 - Surface Area and Volume - 11-6 Surface Areas and Volumes of Spheres - Practice and Problem-Solving Exercises: 15


$20$ $cm^{2}$

Work Step by Step

We first solve for the radius: $\frac{8}{\pi}$= diameter $\frac{8}{\pi}\div2$= radius We use the equation for the surface area of a sphere to obtain: $SA= 4\pi r^{2}$ $4\pi(\frac{8}{\pi}\div2)^{2}= 20$
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