There is a minute hand on the clock face. From 8:15 to 8:55, the tip of the minute hand travels 25.12 cm. What is the length of the minute hand in cm?
钟面上有一根分针，从8：15到8：55，分针的尖端走了25.12厘米，这根分针的长是多少厘米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">25.12 / (2/3)</gadget>
<output>37.68</output>

<gadget id="calculator">37.68 / 3.14 / 2</gadget>
<output>6</output>

<result>6</result>