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OpenStudy (anonymous):
Medal for help! The angles of elevation theta and alpha to an airplane from the airport control tower and from an observation post 2 miles away are being continuously monitored. If theta is 42 degrees when alpha is 81 degrees, how far is the plane from the observation post?
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OpenStudy (anonymous):
I am going to assume our drawing looks like this|dw:1401163147356:dw|
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