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 668: 59

Answer

The given statement:“Standing under an arch its height can be determined by measuring the angle of elevation to the top of arch and distance to the point directly under the arch at which one is standing.” makes sense.

Work Step by Step

This statement is true as the angle of elevation is the angle of an object as noticed by an observer, which is formed between the horizontal and the line from the object to the observer’s eye (the line of sight). Here, by measuring the angle of elevation to the top of the arch form, where one is standing under the height of the arch can be determined. For example, looking up to see a plane passing. Thus, the given statement makes sense.
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