Answer
$\approx27.19$
Work Step by Step
The area of a triangle can be calculated by multiplying two sides' length and the sine of their included angle by $0.5$. Hence here the area is: $0.5\cdot16\cdot11\cdot\sin(18^\circ)\approx27.19$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 13, Trigonometric Ratios and Functions - 13.6 Apply the Law of Cosines - 13.6 Exercises - Quiz for Lessons 13.5-13.6 - Page 894: 10
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