A road roller can travel 200 meters per minute, and the width of the road is 3 meters. If it runs for 9 minutes, how many square meters can the road be rolled in total?
一辆压路机，每分钟可以行驶200米，压路的宽度是3米，行驶9分钟，一共可以压路多少平方米？
<gadget id="calculator">200 * 9 * 3</gadget>
<output>5_400</output>

<result>5_400</result>