Answer
Sine ratio.
$a=10.3$ in.
Work Step by Step
$\sin40^{\circ}=\frac{a}{16}$
$16\sin40^{\circ}=a$
$a=10.3$ in.
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 11 - Review Exercises - Page 524: 1
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