A copper wire is 37.68 meters long, exactly 200 turns on a circular coil. What is the diameter in meters of the cross-section of the circular coil?
一根铜丝长37.68米，正好在一个圆形线圈上绕满了200圈．这个圆形线圈横截面的直径是多少米？
<gadget id="calculator">37.68 / 200</gadget>
<output>0.1884</output>

<gadget id="calculator">0.1884 / 3.14</gadget>
<output>0.06</output>

<result>0.06</result>