A cylinder and a cone have the same base and height. The volume of the cylinder is 12 cubic decimeters larger than that of the cone. What is the volume of the cylinder?
等底等高的圆柱和圆锥，圆柱的体积比圆锥大12立方分米，圆柱的体积是多少立方分米．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<result>18</result>