Answer
$200.6\ m$
Work Step by Step
Use the Law of Cosines, we have $a^2=b^2+c^2-2bc\ cosA=(75)^2+(135)^2-2(75)(135)cos(144^\circ)\approx40232.6$. Thus $a\approx200.6\ m$
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 - Quiz - Page 772: 2
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