A cuboid iron block with a length of 30 cm, a width of 10 cm, and a height of 8 cm is melted and cast into a cone with a base area of 100 cm2. What is the height of the cone in cm?
一块长30厘米、宽10厘米、高8厘米的长方体铁块，熔铸成一个底面积为100平方厘米的圆锥体铁块，圆锥铁块的高是多少厘米？
<gadget id="calculator">30 * 10 * 8</gadget>
<output>2_400</output>

<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">2_400 * (3/100)</gadget>
<output>72</output>

<result>72</result>