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A plane is flying at an altitude of 17,000 feet. The angle of depression fromthe plane to the airport on the ground is 21., What is the distance between the plane and the airport, to the nearest tenth of a foot?

 Mar 13, 2021
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tan 21 = 17 000 / d

d = 17000/ tan21 = 44286.5 ft

 Mar 13, 2021

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