Law of Cosine and Law of Sine

Question

A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 1.6 km apart, to be 21° and 48°, as shown in the figure below. Find the distance of the plane from point A and the elevation of the plane. (Round your answers to one decimal place.) 

distance from the plane to point A Part A:

elevation of the plane Part B:

Please right part A and Part B next to the completed answers :)

Answer 1

The video is quite long! But this was a complicated problem that requires several steps. I hope you find this video helpful in solving this problem and others like it in the future. Feel free to fast forward, pause, jump, skip around, etc.