A conical pile of sand has a circumference of 18.84 meters and a height of 2 meters. If each cubic meter of sand weighs 2 tons, how many tons does the pile of sand have? (π takes 3.14)
一个圆锥形沙堆，底面圆的周长为18.84米，高为2米，如果每立方米沙重2吨，这堆沙共有多少吨？(π取3.14)
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">18.84 / 6.28</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 * 2</gadget>
<output>37.68</output>

<result>37.68</result>