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Answer (3)
324 square feet. 9 x 12 = 108 square feet. 3 walls x 108 sq. ft. = 324 sq. ft.
324 feet ;
Brett painted a total area of 324 square feet by calculating the area of one wall and then multiplying it by three as he painted three walls. Each wall measures 9 feet in height and 12 feet in length, resulting in an area of 108 square feet per wall.
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