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Un article trouvé pour ce sujet.
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Angles of depression |
2007-06-13 |
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Phonda pose la question :
The pilot of a small private plane can look forward and see the control tower for a small airstrip. Beyond that is a large factory that is 3 milies from the airstrip. The angles of depression are 12.5 degrees and 4.8 degrees respectively.
Find the airplane's altitude, to the nearest ten feet.
Stephen La Rocque lui répond. |
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