The municipal government rebuilt a straight road and used a road roller to compact the road surface. The front wheel of this road roller is cylindrical, the wheel width is 2.5m, the diameter is 1.2m, and the front wheel rotates 8 times per minute. It took 20 minutes for the roller to complete the road. How long is the road in meters?
市政府对一条笔直的道路进行改造，用压路机压路面．这台压路机的前轮是圆柱形的，轮宽2.5m，直径1.2m，前轮每分钟转动8周．压路机压完一遍路用了20分钟，这条路全长多少米？
<gadget id="calculator">3.14 * 1.2 * 8 * 20</gadget>
<output>602.88</output>

<result>602.88</result>