None, since there can be no conversion. A d metre is a measure of length in 1-dimensional space while a square foot is a measure of area in 2-dimensional space. The two measure different characteristics and, according to the most basic principles of dimensional analysis, any attempt at comparisons or conversions between the two are fundamentally flawed.
Square feet and feet are not interchangable. Square feet measures area, which is 2D, while feet measure distance, which is 1D. You can't convert the two.
alot
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alot verey much
4 now I have answer your Q u have 2 1D ha ha I love Harry from 1D Beth
it is 1D signal.
One Direction or 1D
2d+1d= 3d