The front wheel of a road roller is cylindrical, with a wheel width of 1.5 meters and a diameter of 1.2 meters. The front wheel rolls 30 times. What is the area of the road in square meters?
一台压路机的前轮是圆柱形，轮宽1.5米，直径1.2米，前轮滚动30周，压路的面积是多少平方米？
<gadget id="calculator">3.14 * 1.2 * 1.5</gadget>
<output>5.652</output>

<gadget id="calculator">5.652 * 30</gadget>
<output>169.56</output>

<result>169.56</result>