A surveyor stands some distance from a tunnel. From this point, she can see both entrances and has measured that one is 388 ft. away, and the other is 212 ft. from her. She measures the angle between the lines of sight to the entrances to be 82°. How long is the tunnel?
A surveyor stands some distance from a tunnel. From this point, she can see both entrances and has measured that one is 388 ft. away, and the other is 212 ft. from her. She measures the angle between the lines of sight to the entrances to be 82°. How long is the tunnel?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A surveyor stands some distance from a tunnel. From this point, she can see both entrances and has measured that one is 388 ft. away, and the other is 212 ft. from her. She measures the angle between the lines of sight to the entrances to be 82°. How long is the tunnel?
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