A road roller has a wheel width of 2 meters and a radius of 1 meter. This road roller rotates 5 times per minute. How many square meters of road surface is pressed per minute?
一台压路机，轮宽2米，半径1米，这台压路机每分钟转5圈，每分钟压的路面是多少平方米？
<gadget id="calculator">2 * 3.14 * 1 * 2 * 5</gadget>
<output>62.8</output>

<result>62.8</result>