Answer
$30^{\circ}$
Work Step by Step
$\sin\alpha=\frac{1}{2}$
$\alpha=\sin^{-1}\frac{1}{2}$
$\alpha=30^{\circ}$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 11 - Test - Page 534: 13b
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