Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 9 - Section 9.4 - Polyhedrons and Spheres - Exercises - Page 441: 32



Work Step by Step

We use the equation for volume, letting pi equal 22/7: $SA= (4)(22/7)l(r^2) \\154= (4)(22/7)l(r^2) \\ r = \sqrt{12.25} = 3.5$
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