Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 11 - Test: 15


$42$ cm$^{2}$

Work Step by Step

$A=\frac{1}{2}bc\sin\alpha$ $A=\frac{1}{2}(8)(12)\sin60$ $A\approx42$
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