A cylinder and a cone have the same volume and the same base area. Given that the height of the cylinder is 12 cm, what is the height of the cone in cm?
一个圆柱与一个圆锥体积相等，底面积也相等．已知圆柱的高是12厘米，圆锥的高是多少厘米．
<gadget id="calculator">12 * 3</gadget>
<output>36</output>

<result>36</result>