SOLUTION: Here is the problem: A helicopter flying at an altitude of 1 mile observes a heliport landing area at an angle of depression of 24 deg 20'. How far, in feet, is the helicopter fr
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-> SOLUTION: Here is the problem: A helicopter flying at an altitude of 1 mile observes a heliport landing area at an angle of depression of 24 deg 20'. How far, in feet, is the helicopter fr
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Question 113623: Here is the problem: A helicopter flying at an altitude of 1 mile observes a heliport landing area at an angle of depression of 24 deg 20'. How far, in feet, is the helicopter from the landing area?
I am completing confused! Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! the altitude of the helicopter, the distance to the landing area, and the ground; form a right triangle
the angle between the altitude and the distance (which is the hypotenuse), is the complement of the angle of depression
let x=distance ___ cos(90°-24°20')=1 mi/x ___ x=5280/cos(65°40')
