Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.2 Geometry Essentials - A.2 Assess Your Understanding - Page A20: 34


$113.10\ ft^3, \ 113.10\ ft^2$

Work Step by Step

The volume $V$ and surface area $S$ of a sphere are given by $$ V=\frac{4}{3} r^3 \pi=\frac{4}{3}\times 3^3 \pi=113.10\ ft^3\\ A=4r^2\pi=4\times 3^2\pi=113.10\ ft^2 .$$
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