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musiclover10045
base is 12 feet square so 12 *12 = 144 square feet

each triangle has base of 12 feet and height of 8 feet
 area of triangle = 1/2 x base x height = 1/2 x 12 x 8 = 48 square feet

48 x 4 triangles = 192 square feet

total: 192 + 144 = 336 square feet