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a hot air balloon is sighted at the same time by two friends. They are 2 miles apart. the angles of elevation of the balloon from the two friends are 10 degrees and 15 degrees. How high is the balloon? 1 two cell phone towers are 100 meters apart. tower it is estimated that a cell phone operator is 60 meters from tower A and 50 meters from tower B. What is the angle from the line of sight between tower A and tower B, to the cell phone operator? 2 3