Trigonometry (10th Edition)

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

Chapter 2 - Acute Angles and Right Triangles - Section 2.5 Further Applications of Right Triangles - 2.5 Exercises - Page 82: 21

Answer

147.5 mi

Work Step by Step

1. $24 mph \times 4h = 96 mi $ $23 mph \times 4h = 112mi$ 2. Right angled triangle, use Pythagoras theorem $x = \sqrt {112^2 +96^2} = 147.5mi$
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