A pilot flying at 3,700 feet spots a dock on a lake at an angle of depression of 35 degrees, In the diagram below, the pilot is located at point A, the dock is located at point C, and the angle of depression is

Question

A pilot flying at 3,700 feet spots a dock on a lake at an angle of depression of 35 degrees, In the diagram below, the pilot is located at point A, the dock is located at point C, and the angle of depression is <BAC 

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anonymous · Answer

a. 
DC is the distance on the ground from the plane to the dock. Use a trigonometric ratio to find DC to the nearest foot. Show your work. 
b. 
Find the measure of the angle of elevation <ACD . Explain your method for finding the angle. 
c. 
Use a trigonometric ratio to find AC to the nearest foot. Show your work.