54 ft2
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54. 9 ft x 6 ft = 54 square feet.
12 feet 6 inches x 17 feet 9 inches = 221.875 square feet
54 square feet
One way:9 ft 2 in = 9 and 1/6 feet = 55/6 feet9 ft 9 in = 9 and 3/4 feet = 39/4 feet(55/6) x (39/4) = (55 x 39) / (6 x 4) = (2145) / (24) = 89.375 square feet======================================Another way:1 foot = 12 inches1 square foot = 144 square inches9 ft 2 in = (9 x 12) + 2 = 110 inches9 ft 9 in = (9 x 12) + 9 = 117 inches(110) x (117) = 12,870 square inches = (12,870 / 144) = 89.375 square feet
9 x 9 = 81 square feet.