A cylinder and a cone have the same base area and the same volume, the height of the cone is 9 cm, what is the height of the cylinder in cm?
一个圆柱和一个圆锥的底面积相等，体积也相等，圆锥高9厘米，圆柱高多少厘米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9 * (1/3)</gadget>
<output>3</output>

<result>3</result>