An airplane is flying at 4000 feet above the ground. If the angle of depression from the airplane to the beginning of the runway is 5.4°, what is the horizontal distance to the nearest tenth of a mile of the airplane to the beginning of the runway?
Question
Answer:
tan 5.4 = 4000/xx = 4000/tan 5.4
x = 42,316 ft
x = 42,316/5280 mi = 8.0 miles
Answer: 8.0 miles
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10 months ago
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