A cylinder and a cone have the same volume, the ratio of the radii of their bases is 2:3, the height of the cylinder is 18 cm, what is the height of the cone in cm.
一个圆柱体和一个圆锥体的体积相等，它们底面半径的比是2：3，圆柱的高是18厘米，圆锥的高是多少厘米．
<result>24</result>