A cylinder and a cone have the same volume and base area, the height of the cone is 3dm, what is the height of the cylinder in dm.
一个圆柱和一个圆锥的体积和底面积都相等，圆锥的高是3dm，圆柱的高是多少dm．
<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<result>1</result>