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2) The beam of a radar is directed at a 40.0° degree angle and detects a helicopter at a distance of 12 km. What is the height of the helicopter above the ground in kilometers and in feet?
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In a right angle triangle, the sin of an angle is defined as, Perpendicular Hypotenuse sine

12 ky her Rada M D 1 2 . 기 3) ( 3280-84) g 5.3 0 6.599 beets

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