After a cylinder is cut off by 12 cubic decimeters, it is just cut into a cone with its base and height. What is the volume of this cone?
一个圆柱体削去12立方分米后，正好削成一个与它等底等高的圆锥体，这个圆锥体体积是多少立方分米．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<result>6</result>