Multiply width by length to get the area. The answer would be 1600 square feet.
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1,600 feet. To find the square feet of an area you need to multiply the length by the width. 20 times 80 equals 1,600.
The area is found by multiplying the two dimension. This would be 1,600 square feet.
20 feet x 4 feet = 80 square feet.
about.......... 80 feet
44.4 square feet.