A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an average perimeter of 40 μm. The average area of the cell wall (μm2) is

A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an aver

1.	A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an average perimeter of 40 μm.  The average area of the cell wall (μm2) is
A.	80
B.	100
C.	120
D.	140
Answer» D. 140

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A cotton fibre of 180 millitex has a density of 1.5 g/cm3&nbsp;and an average perimeter of 40 &mu;m.&nbsp; The average area of the cell wall (&mu;m2) is

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A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an average perimeter of 40 μm. The average area of the cell wall (μm2) is