A cylinder and a cone have the same volume, the diameter of the base is 12 cm, the height of the cylinder is 9 cm, what is the height of the cone in cm
一个圆柱和一个圆锥的体积相等，底面直径都是12厘米，圆柱的高是9厘米，圆锥的高是多少厘米
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">9 / (1/3)</gadget>
<output>27</output>

<result>27</result>