A cone and a cylinder have the same base area and volume, the height of the cone is 6.9 decimeters, how many decimeters is the height of the cylinder.
一个圆锥和一个圆柱的底面积和体积都相等，圆锥的高是6.9分米，圆柱的高是多少分米．
<gadget id="calculator">6.9 / 3</gadget>
<output>2.3</output>

<result>2.3</result>