Elementary Geometry for College Students (5th Edition)

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

Chapter 9 - Section 9.3 - Cylinders and Cones - Exercises - Page 431: 17

Answer

About 6.9 in

Work Step by Step

(2h)$^2$=6$^2$+h$^2$ 3h$^2$=36 h$^2$=12 h=$\sqrt {12}$ l=2h l=2$\sqrt {12}$ l$\approx$6.9
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