A conical sand pile has a circumference of 25.12m at the bottom and a height of 1.2m. Using this pile of sand to pave a 4cm thick road on a 8m wide road, how long can it be paved?
一个圆锥形沙堆，它的底面周长是25.12m，高1.2m．用这堆沙子在8m宽的公路上铺4cm厚的路面，能铺多长？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">25.12 / 6.28</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">8 * (1/25)</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">1.2 / (8/25)</gadget>
<output>3.75</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 3.75</gadget>
<output>62.8</output>

<result>62.8</result>