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To find the perimeter of the moat, we need to add up the lengths of all four sides.
The length of the moat is 16 ft and the width is 11 ft. This means that the length of the stone flooring on each side (outside of the moat) will be 16 ft + 2(12 ft) = 40 ft. The width of the stone flooring on each side will be 11 ft + 2(7 ft) = 25 ft.
Therefore, the perimeter of the moat will be 40 ft + 25 ft + 40 ft + 25 ft = 130 ft.
So, the perimeter of the moat is 130 ft.