A cone with a height of 12 cm is filled with water and poured into a cylindrical container with the same bottom and height. What is the height of the water at this time?
一个圆锥高12cm，装满水后，倒入等底等高的圆柱体容器，这时水的高度是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 * (1/3)</gadget>
<output>4</output>

<result>4</result>