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A copper wire 3mm in diameter is rounded about a cylinder whose length is 1.2m and diameter is 10cm, so as to cover the curved surface of the cylinder. Find the length of the wire. |
| Answer» A copper wire 3mm in diameter is rounded about a cylinder whose length is 1.2m and diameter is 10cm, so as to cover the curved surface of the cylinder. Find the length of the wire. | |