A surveyor sights two points directly ahead. Both are at an elevation 18.525 m lower than the
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A surveyor sights two points directly ahead. Both are at an elevation 18.525 m lower than the observation point. How far apart are the points if the angles of depression are 13.500° and 21.375°, respectively? See Fig. 4.95.
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www | 18.525 m I 13.500° 21.375° Fig. 4.95 -
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Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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