The drum of the road roller is cylindrical, its radius is 0.8 meters, and its width is 1.5 meters. If the drum rotates 5 times per minute, how many square meters is the area pressed per minute?
压路机的滚筒是圆柱形，它的半径是0.8米，宽是1.5米．如果滚筒每分钟转动5周，那么每分钟压路的面积是多少平方米？
<gadget id="calculator">7.536 * 7.5</gadget>
<output>56.52</output>

<result>56.52</result>