Answer
$42$ cm$^{2}$
Work Step by Step
$A=\frac{1}{2}bc\sin\alpha$
$A=\frac{1}{2}(8)(12)\sin60$
$A\approx42$
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 - Test - Page 527: 15
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