There is a conical pile of sand, the circumference of the bottom surface is 18.84m, and the height is 2.4m. If the sand is spread on a road with a length of 31.4m and a width of 2m, how thick can it be?
有一个圆锥形沙堆，底面周长是18.84m，高是2.4m，把这些沙子铺在一条长31.4m，宽2m的道路上，能铺多厚？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<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 * 2.4</gadget>
<output>22.608</output>

<gadget id="calculator">31.4 * 2</gadget>
<output>62.8</output>

<gadget id="calculator">22.608 / 62.8</gadget>
<output>0.36</output>

<result>0.36</result>