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

<result>27</result>