The roller of the road roller is a cylinder with a diameter of 1 meter at the bottom and a length of 1.8 meters. How much area of road surface can be pressed per rolling week?
压路机的滚筒是一个圆柱体，它的底面直径是1米，长1.8米．每滚动一周能压多大面积的路面？
<gadget id="calculator">3.14 * 1 * 1.8</gadget>
<output>5.652</output>

<result>5.652</result>