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Multiply 37 x 30 to get the square footage.
It is: 16*30 = 480 square feet
390 = 13 x 30
30 feet by 28 feet equals 840 square feet. 30 inches by 28 inches equals 840 square inches, or 5.833 square feet.
30 x 60
540
900 square feet
Multiply 37 x 30 to get the square footage.
It is: 16*30 = 480 square feet
900 square feet
690
20 X 30 = 600 square feet.
30 feet x 20 feet = 600 square feet.
105000 square feet
390 = 13 x 30
240 square feet
30 feet by 28 feet equals 840 square feet. 30 inches by 28 inches equals 840 square inches, or 5.833 square feet.