A cone-shaped sand pile has a base radius of 3 meters and a height of 2.7 meters. How many meters can be paved with this sand pile on a 15-meter-wide road with a thickness of 4 cm?
一个圆锥形沙堆，底面半径3米，高2.7米，用这个沙堆在15米宽的公路上铺4厘米厚的路面，能铺多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 2.7</gadget>
<output>25.434</output>

<gadget id="calculator">15 * 0.04</gadget>
<output>0.6</output>

<gadget id="calculator">25.434 / 0.6</gadget>
<output>42.39</output>

<result>42.39</result>