A cylinder and a cone have the same volume and the same base area, and the height of the cylinder is 9 cm, what is the height of the cone in cm
一个圆柱与一个圆锥体积相等，底面积相等，圆柱的高是9厘米，则圆锥的高是多少厘米
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>