Question

A building is 50 feet high. At a distance away from the building, an observer notices that the angle of elevation to the top of the building is 41 degrees. How far is the observer from the base of the building?
Did you make your sketch??
If so, then you will see that
tan41° = 50/d
d = 50/tan41
= ....
50/(tan(41)) = x
An airplane is flying at a height of two miles above the ground. The distance along the ground from the airplane to the airport is five miles. What is the angle of depression from the airplane to the airport?

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