Mathematics

Mathematics, 03.02.2021 06:20, niki1524

The air traffic controller at an airport spots a plane at an altitude of 20,000 feel with an angle of elevation of 22 dgree. what is the horizontal distance from the plane to the airport a. 49.5 miles
b. 4.09 miles
c. 10.11 miles
d. 9.38 miles
please explain why.

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