The minute hand of a wall clock is 1.2 decimeters long, how many centimeters does the tip of the minute hand move from 12:00 to 12:30?
一个挂钟的分针长1.2分米，从12时到12时30分，分针尖端移动了多少厘米？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1.2 * 10 * 1</gadget>
<output>37.68</output>

<result>37.68</result>