The roller of a road roller is a cylinder with a bottom diameter of 1 meter and a length of 1.5 meters. If it rolls 5 times, how many square meters will be rolled?
一种压路机的滚筒是圆柱体，它的底面直径是1米，长1.5米，如果它滚动5周，一共压路多少平方米？
<gadget id="calculator">3.14 * 1 * 5 * 1.5</gadget>
<output>23.55</output>

<result>23.55</result>