The radius of Mr. Li's bicycle wheel is 30 cm, and the wheel rotates 100 times per minute. It took Mr. Li 10 minutes to go from home to school. Ask for the distance from Mr. Li's home to school.
李老师的自行车轮的半径是30厘米，车轮每分钟转100周．李老师从家到学校用了10分钟，求李老师家到学校的路程．
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">2 * 3.14 * (3/10) * 100 * 10</gadget>
<output>1_884</output>

<result>1_884</result>