Answer
$a\approx6.9$ in.
$b\approx9.8$ in.
Work Step by Step
$\sin35^{\circ}=\frac{a}{12}$
$a=12\times\sin35^{\circ}$
$a\approx6.9$
Using Pythagorean Theorem to find $b$.
$b=\sqrt {12^{2}-a^{2}}$
$b\approx\sqrt{12^{2}-6.9^{2}}$
$b\approx9.8$
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 - Section 11.1 - The Sine Ratio and Applications - Exercises - Page 504: 15
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