Answer
$Area = 15.75$
Work Step by Step
Let $a = 7$, let $b = 9$, and let angle $C = 150^{\circ}$.
We can find the area of the triangle:
$Area = \frac{1}{2}ab~sin~C$
$Area = \frac{1}{2}(7)~(9)~sin(150^{\circ})$
$Area = 15.75$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 7 - Quiz (Sections 7.1-7.3) - Page 325: 4
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