cylinder and a cone have the same base area and volume, if 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和体积分别相等，如果圆锥的高是9厘米，圆柱高是多少厘米
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>