A cylinder and a cone have the same volume, the ratio of the radii of their bases is 2:3, the height of the cone is 8 cm, what is the height of the cylinder in cm.
一个圆柱和一个圆锥的体积相等，它们底面半径的比是2：3，圆锥的高是8厘米，圆柱的高是多少厘米．
<result>6</result>