The mathematics teacher’s teaching aids include a cylinder and a cone. The teacher told Chen Ming that the volume of the cylinder and the cone are equal, and the area of the bottom is also equal. The height of the cone is 12 cm. Please calculate the height of this cylinder in centimeters.
数学老师的教具里有一个圆柱和一个圆锥，老师告诉陈明，圆柱和圆锥的体积相等，底面积也相等，圆锥的高是12厘米．请你算算，这个圆柱的高是多少厘米．
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<result>4</result>