The minute hand of a clock is 10 cm long, how many centimeters does the tip of the minute hand travel from the number 3 to the number 6?
一个钟表的分针长10厘米，从数字3走到数字6，分针针尖走过了多少厘米．
<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 * 3.14 * 10 * (1/4)</gadget>
<output>15.7</output>

<result>15.7</result>