A cone with a volume of 25.12cm**3 and a radius of 2cm is its height in cm.
一个体积是25.12cm**3的圆锥，半径是2cm，它的高是多少cm．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">25.12 / (1/3) / 12.56</gadget>
<output>6</output>

<result>6</result>