A cylinder and a cone have the same base area and volume, and the height of the cylinder is 9 cm. What is the height of the cone in cm?
一个圆柱体的一个圆锥体的底面积和体积都相等，圆柱的高是9厘米，圆锥体的高应是多少厘米．
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>