Answer
$92\ km$
Work Step by Step
1. Draw a diagram as shown.
2. We can find angle $B=62^\circ+28^\circ=90^\circ$
3. In the right triangle ABC, use Pythagorean's Theorem, we have $x=\sqrt {75^2+53^2}\approx92\ km$
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 5 - Trigonometric Functions - Test - Page 564: 31
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