The roller of a road roller is 1.2 meters long and 0.5 meters in diameter. If it rolls 10 times on the road, how many square meters will it press on the road?
一台压路机的滚筒长1.2米，直径0.5米，如果它在马路上滚动10圈，所压路面的面积是多少平方米？
<gadget id="calculator">3.14 * 0.5 * 1.2 * 10</gadget>
<output>18.84</output>

<result>18.84</result>