#### Answer

11.5 in

#### Work Step by Step

The length of segment BC is:
$ sin( 90 - \beta) = \frac{CB}{AB}$
$AB sin( 90 - \beta) = CB$
$CB=sin(90-55)(20 in)=11.5 in$

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Published by
Cengage

ISBN 10:
978-1-337-61408-5

ISBN 13:
978-1-33761-408-5

11.5 in

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