Answer
$90.2$ $ cm^{2}$
Work Step by Step
Using the formula given in the previous exercise, the area of the parallelogram is: $a \times b \times \sin \gamma$
$8 cm \times 12 cm \times \sin 70^{\circ}$$= 90.2$ $ cm^{2}$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter - Section 11.4 - Applications with Acute Triangles - Exercises - Page 529: 40
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