The minute hand of a clock is 3 cm long, how many meters does its tip travel in a day and night (π=3.14).
一座钟表的分针长3厘米，它的尖端在一昼夜里走过的路程是多少米(π=3.14)．
<gadget id="calculator">3.14 * 12</gadget>
<output>37.68</output>

<gadget id="calculator">37.68 / 100</gadget>
<output>0.3768</output>

<result>0.3768</result>