The roller of the road roller is a cylinder with a diameter of 1.5 meters and a width of 2 meters. Now roll forward 40 weeks, how many square meters is the area of the extruded road surface?
压路机的滚筒是一个圆柱体，直径是1.5米，宽是2米．现在向前滚动40周，求压出路面面积是多少平方米？
<gadget id="calculator">3.14 * 1.5 * 2 * 40</gadget>
<output>376.8</output>

<result>376.8</result>