We have 2 rectangular sheets of paper. M and N, of dimensions 6 cm × 1 cm each. Sheet M is rolled to from an open cylinder by bringing the short edges of the sheet together. Sheet N is cut into equal patches and assembled to from the largest closed cube. Assuming the ends of the cylinder are closed, the ratio of the volume of the cylinder to that cube is ______
1
\(\frac{3}{\pi }\)
2
\(\frac{9}{\pi }\)
3
\(\frac{\pi }{2}\)
4
3π