The roller of the roller is a cylinder. Drum diameter ⒈ 2 meters, length ⒈ 5 meters. Now the roller rolls forward 120 times, what is the area of the pressed road?
压路机的滚筒是一个圆柱体．滚筒直径⒈2米，长⒈5米．现在滚筒向前滚动120周，被压路面的面积是多少？
<gadget id="calculator">3.14 * 1.2 * 1.5 * 120</gadget>
<output>678.24</output>

<result>678.24</result>