A road roller has a cylindrical front wheel with a width of 2 meters and a diameter of 1 meter. It turns 100 revolutions per minute. How many square meters can this road roller roll in one hour?
一台压路机，前轮是圆柱形，轮宽2米，直径为1米，每分钟转100周，这台压路机一小时能压路多少平方米？
<gadget id="calculator">3.14 * 1 * 2 * 100 * 60</gadget>
<output>37_680</output>

<result>37_680</result>