A cone and a cylinder have the same base and volume. The height of the cone is 12 cm. What is the height of the cylinder in cm?
一个圆锥和一个圆柱等底等体积，圆锥的高是12cm，圆柱的高是多少cm．
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<result>4</result>