1,600 square feet
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400 square feet
To find the square footage of a rectangular area, you multiply the length by the width. In this case, 20 feet x 28 feet equals 560 square feet. Therefore, a house with dimensions of 20 feet by 28 feet has a total area of 560 square feet.
400 square feet.
20 239 718 400 square feet.
30' x 20' (600 square feet) = 66.6 square yards.