The front wheel of a road roller is cylindrical, the width of the wheel is 1.5 meters, and the diameter is 1.2 meters. If the front wheel rotates once, how many square meters is the rolling area?
一个压路机的前轮是圆柱形，轮宽1.5米，直径是1.2米，前轮转动一周，压路面积是多少平方米？
<gadget id="calculator">3.14 * 1.2 * 1.5</gadget>
<output>5.652</output>

<result>5.652</result>