There is a cone-shaped pile of sand, the circumference of the base is 18.84 square decimeters, and the height is 6 decimeters. Put these sands into a cylinder with a bottom radius of 2 decimeters, how many decimeters is the height?
有一堆圆锥形的沙子，底面周长是18.84平方分米，高是6分米．把这些沙子放入一个底面半径为2分米的圆柱形屯里，高是多少分米？
<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 * 6</gadget>
<output>56.52</output>

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

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">56.52 / 12.56</gadget>
<output>4.5</output>

<result>4.5</result>