A road roller has a cylindrical front wheel with a width of 1.6 meters and a diameter of 0.8 meters. The front wheel rolls 15 times per minute, how many square meters is the area of the road rolled by this road roller per minute?
一种压路机的前轮是圆柱形状的，轮宽1.6米，直径0.8米．每分钟前轮滚动15周，这辆压路机每分钟压路的面积是多少平方米？
<gadget id="calculator">3.14 * 0.8 * 1.6 * 15</gadget>
<output>60.288</output>

<result>60.288</result>