A cylindrical aluminum rod with a length of 40 cm and a base area of 31.4 cm2. If it is cast into a cone with a base radius of 10 cm, what is the height of the cone?
一段圆柱体铝棒，长40厘米，底面积是31.4平方厘米．如果把它熔铸成一个底面半径是10厘米的圆锥体，圆锥体的高应是多少厘米．
<gadget id="calculator">31.4 * 40</gadget>
<output>1_256</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">(1/3) * 3.14 * 100</gadget>
<output>104.666667</output>

<gadget id="calculator">1_256 / 104.666667</gadget>
<output>12</output>

<result>12</result>