need help1 what function to use? math

An airplane approaches a runway at a 3 degree angle of depresssion. If the plane is flying at 30,000 ft., find the ground distance from the airport to the point directly below the plane when the pilot begins the descent. Round your answer to the nearest foot.

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  1. I think it is tan3=30000/l ,l =30000/tan3 theni thnk u can cntinue

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  2. That is correct

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    posted by Damon
  3. thank you

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