A rope is 125.6 meters long, and it goes around the wooden cylinder exactly 10 times. What is the diameter of the wooden cylinder in meters?
一根绳子长125.6米，正好绕木筒10圈，这个木筒的直径是多少米？
<gadget id="calculator">125.6 / 10 / 3.14</gadget>
<output>4</output>

<result>4</result>