A permanent brand bicycle, the outer tire radius is 35 cm, if it turns 100 times per minute, how many points do you need to ride to pass a 659.4-meter-long bridge?
一辆永久牌自行车，外轮胎半径是35厘米，如果每分转100圈，要想通过一座659.4米长的大桥，需要骑多少分？
<gadget id="calculator">659.4 * 100</gadget>
<output>65_940</output>

<gadget id="calculator">3.14 * 35 * 2 * 100</gadget>
<output>21_980</output>

<gadget id="calculator">65_940 / 21_980</gadget>
<output>3</output>

<result>3</result>