Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.6 Right Triangle Trigonometry - Exercise Set 10.6 - Page 667: 37

Answer

The distance to which the plane has flown is\[2,879\text{ feet}\].

Work Step by Step

The distance to which the plane has flown is\[AB\]and has been showcased as\[c\]. Compute the length of \[c\]using the trigonometric function of Sine as follows: \[\begin{align} & \text{Sin}\theta =\tfrac{\text{Side opposite to angle}\theta }{\text{Hypotenuse}} \\ & \text{Sin}10{}^\circ =\tfrac{BC}{AB} \\ & 0.172648=\tfrac{500}{AB} \end{align}\] On, cross multiplying both sides. We get \[\begin{align} & AB=\tfrac{500\text{ feet}}{0.173648} \\ & c=2879\text{ feet} \end{align}\] Hence, the distance to the nearest foot, the plane has flown is\[2879\text{ feet}\].
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