Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 2 - Acute Angles and Right Triangles - Section 2.4 Solving Right Triangles - 2.4 Exercises - Page 74: 43

Answer

$x \approx 82 ft$ $y \approx 98ft$

Work Step by Step

1. Use tangent to find x $\tan 20^{\circ} =\frac{30}{x}$ $x\approx 82 ft$ 2. Use tangent of another angle to find y $\tan 50^{\circ} = \frac{y}{x}$ Calculating this use the exact value of x from the calculator $y\approx 98 ft$
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