Answer
$18\ unit^2$
Work Step by Step
Use the figure given in the exercise, let the base $z=6$, the height is $h=12sin30^\circ=6$, thus the area is given by $A=\frac{1}{2}zh=\frac{1}{2}(6)(6)=18\ unit^2$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 8 - Application of Trigonometry - Test - Page 843: 5
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