Answer
$ l = 10.2cm$
Work Step by Step
$ l = \sqrt {15^2 - 11^2} = \sqrt {225 - 121} = \sqrt {104} = 10.2cm$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 8 - Geometry - Review Exercises - Page 617: 65
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