The front wheel of a road roller is a cylindrical drum with a base radius of 60 cm and a width of 1.5 meters. If it rotates 20 times per minute, how many square meters will be rolled per minute?
一台压路机的前轮是一个底面半径60厘米，宽1.5米的圆柱形滚筒，如果每分钟转20周，每分钟压路多少平方米？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3.14 * (3/5) * 2 * 1.5 * 20</gadget>
<output>113.04</output>

<result>113.04</result>