The minute hand of a clock is 6 cm long, and it makes one revolution, what is the distance traveled by the tip of the minute hand?
一个座钟的分针长6厘米，它旋转一周，分针尖端所行的路程是多少厘米？
<gadget id="calculator">3.14 * 6 * 2</gadget>
<output>37.68</output>

<result>37.68</result>