Cut a cylindrical wooden block with a volume of 18dm**3 into the largest cone, what is the volume of the cut part in cm**3.
把体积是18dm**3圆柱形木块削成一个最大的圆锥，削去部分的体是多少cm**3．
<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<gadget id="calculator">18 - 6</gadget>
<output>12</output>

<result>12</result>