The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B
are 2.1 miles apart, and the airplane is east of both points in the same vertical plane. Find the altitude of the plane. (Round your answer to two decimal places.)
The value of X is D. 25 Every triangle adds up to 180 degrees so you just add up the given numbers, then subtract that number from 180 and that is your answer.