When re measuring the diameter of the wire, the wire is tightly and evenly wound on the pen, the number of turns is 16, and the length of the wire is 16 It's 25 mm. What's the diameter of the thin wire?

When re measuring the diameter of the wire, the wire is tightly and evenly wound on the pen, the number of turns is 16, and the length of the wire is 16 It's 25 mm. What's the diameter of the thin wire?

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25 / 16
The result is 1.5625 mm