Answer
$51.8 $ $cm^{2}$
Work Step by Step
Using the formula given in the previous exercise, the area of the parallelogram is: $a×b×sinγ$
$6.3cm×8.9cm×sin67.5^{\circ}=51.8 $ $cm^{2}$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter - Section 11.4 - Applications with Acute Triangles - Exercises - Page 529: 43
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