A cone and a cylinder have a volume ratio of 3:4 and a base area ratio of 1:4. If the height of the cone is 7.2 cm, what is the height of the cylinder in cm?
一个圆锥和一个圆柱，体积比是3：4，底面积的比是1：4，如果圆锥的高是7.2厘米，那么，圆柱的高是多少厘米．
<gadget id="calculator">9 / 1</gadget>
<output>9</output>

<gadget id="calculator">7.2 / 9</gadget>
<output>0.8</output>

<result>0.8</result>