cylindrical iron block with a base area of 8 cm2 and a height of 3 cm is melted and cast into a conical iron block with a base area of 12 cm2. What is the height in cm?
一个圆柱形铁块，底面积是8平方厘米，高是3厘米，将它熔铸成底面积是12平方厘米的圆锥形铁块，高是多少厘米．
<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 * 3 * (1/4)</gadget>
<output>6</output>

<result>6</result>