The airplane

The airplane sights a runway at an angle of depression of 23°. It is flying at an altitude of 3 kilometers above the ground. What is the horizontal distance of the airplane from the airport?

Correct answer:

x =  7.0676 km

Step-by-step explanation:

h=3 km α=23°=23  tan α = h:x  x=h/tanα=h/tan23° =3/tan23° =3/0.424475=7.068=7.0676 km

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