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30' is a measure of length or distance in 1-dimensional space while a square yard is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid without some addition information.
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9 square feet = 1 square yard Area of the floor = 12' x 30' = 360 square feet = 40 square yards
30*25=750 square feet To convert this to yards, divide by 3. 750/3=250 square yards
30*25 = 750 sq yards.
There are 9 square feet in one square yard. Therefore, 30 square yards is equal to 30 x 9 = 270 square feet.
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