The road construction team wants to build a road in the county. There is a roller with a diameter of 1 meter and a length of 2 meters. If the roller rotates 30 times per minute, how many square meters of road surface can be pressed in 3 minutes?
筑路队要在县城修一条路，有一辆压路机的滚轮的直径为1米，长为2米，如果滚轮每分钟转30圈，那么3分钟可压多少平方米的路面？
<gadget id="calculator">3.14 * 1 * 2 * 30 * 3</gadget>
<output>565.2</output>

<result>565.2</result>