A cone and a cylinder have the same base and height. If the volume of the cone is 12 cubic meters, what is the volume of the cylinder?
一个圆锥体和一个圆柱体等底等高．圆锥体体积是12立方米，圆柱体体积是多少立方米．
<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<result>36</result>