The outer diameter of a car tire is 0.8 meters. If the wheel rotates 400 times per minute, how many meters can the car travel per minute?
一个汽车轮胎的外直径是0.8米，如果车轮每分钟转400周，那么，这辆汽车每分钟能行驶多少米？
<gadget id="calculator">3.14 * 0.8 * 400</gadget>
<output>1_004.8</output>

<result>1_004.8</result>