A cone and a cylinder have the same volume and base area, the height of the cone is 9 cm, what is the height of the cylinder
一个圆锥和一个圆柱体积和底面积都相等，圆锥的高是9cm，圆柱的高是多少
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>