If the volume of a cone is 12 cubic decimeters, what is the volume of three cylinders with the same base and height?
一个圆锥的体积是12立方分米，3个和它等底等高的圆柱的体积是多少．
<gadget id="calculator">12 * 3 * 3</gadget>
<output>108</output>

<result>108</result>