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The answer cannot be determined: the only thing that can be said is that he lenght must be at least sqrt(640) ft = 25.3 ft approx.
Let L be any length greater than or equal to 25.3 ft and let B = 640/25.3 feet. Then a rectangle of length L and breadth B has an area of L*B = L*(640/L) = 640 sq ft. Since L is ANY value greater than 25.3 ft, there are infinitely many possible values for L and so infinitely many possible answers to the question.
And all that assumes the area is rectangular. It could be another shape, adding another lot of infinite possible answers!
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What is the area of a rectangle with length of 13' and width of 6'?
Area = Length * Width = 13 ft * 6 ft = 13*6 sq ft = 78 sq ft
How do you figure length and width from sq ft?
You can't without one or the other. If you know length then width is the area divided by the length.
How do you square a room for flooring?
measure length by width = sq ft
Is converting sq ft to sq yd the same formula as sq yd to sq ft?
Yes. convert to the common unit of measurement (e.g. ft to yd) and then multiply length times width.
What is the width of a rectangle with an area of 270 sq feet?
Assuming Width <= Length then the width can be any positive value less than sqrt(270) feet = 16.43 feet (approx). Width = 15 ft goes with Length = 270/15 = 18 feet Width = 10 ft with Length = 270/10 = 27 ft Width = 0.0001 ft with Length = 270/0.0001 = 2700000 ft etc.
