The front wheel of a road roller is cylindrical, with a width of 2 meters and a diameter of 1.2 meters. The front wheel rotates 5 times. How many square meters is the road covered?
一台压路机的前轮是圆柱形，轮宽2米，直径1.2米，前轮转动5周，压过的路面是多少平方米？
<gadget id="calculator">3.14 * 2 * 1.2</gadget>
<output>7.536</output>

<gadget id="calculator">7.536 * 5</gadget>
<output>37.68</output>

<result>37.68</result>