Mathematics, 13.05.2021 20:10 breann6
Planes the fly at high speeds and low elevations have radar systems that can determine the range of an obstacle and the angle of elevation to the top of the obstacle. The radar of a plane flying at an altitude of 20,000 feet detects a tower that is 25,000 feet away, with an angle of elevation of 1° a. How many feet must the plane rise to pass over the tower?
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