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: 27b

Answer

9

Work Step by Step

We know that the radius of the sphere is 2/3 the altitude of the cone. Thus: $r = 6(3/2) = 9$
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