A road roller has a cylindrical front wheel. The wheel is 1.2 meters wide and 0.6 meters in diameter. If the front wheel rolls 10 times, how many square meters is the road covered?
一种压路机的前轮是圆柱形状的．轮宽1.2米，直径是0.6米．如果前轮滚动10圈，压过的路面是多少平方米？
<gadget id="calculator">3.14 * 0.6 * 1.2 * 10</gadget>
<output>22.608</output>

<result>22.608</result>