A helicopter flying 1600 feet above the ground spots an airplane flying above. If the horizontal distance between the helicopter and airplane is 3,055 feet and the angle of elevation is 71 degrees, find the airplane's altitude.
Added by Vicenta J.
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We are given a right triangle formed by the helicopter's altitude (1600 feet), the horizontal distance between the helicopter and the airplane (3055 feet), and the angle of elevation from the helicopter to the airplane (71 degrees). We need to find the airplane's Show more…
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ALTITUDE The angles of elevation to an airplane from two points $A$ and $B$ on level ground are $55^{\circ}$ and $72,$ respectively. The points $A$ and $B$ are 2.2 miles apart, and the airplane is east of both points in the same vertical plane. Find the altitude of the plane.
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