B 78°10 P 2540 ft. 47°20 d=? To find the distance from observer's point A on one side of a river to a point P on the other side, a line AP' measuring 2,540 feet was laid out on one side and the angles P'AP and AP'P were measured and found to be 470 20' and 78010', respectively. Find the distance from A to P. O 2,113 feet O 3,054 feet 3,383 feet

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