The length of the minute hand of a wall clock is 6 decimeters, how many square centimeters does the minute hand sweep in 50 minutes?
一个挂钟的分针长是6分米，分钟走50分钟扫过的面积是多少平方厘米．
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">10 / 12</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">3.14 * 36 * (5/6) * 100</gadget>
<output>9_420</output>

<result>9_420</result>