48. Distance between a Ship and a Submarine From an airplane flying over the ocean, the angle of depression to a submarine lying under the surface is 24° 10'. At the same moment, the angle of depression from the airplane to a battleship is 17° 30'. See the figure. The distance from the airplane to the battleship is 5120 ft. Find the distance between the battleship and the submarine. (Assume the airplane, subma- rine, and battleship are in a vertical plane.) 17° 30' 24° 10' 5120 ft Battleship Submarine

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