A conical measuring cup with a height of 12 cm is filled with water. If the water is poured into a cylindrical measuring cup with the same area as the bottom, what is the height of the water surface in cm?
把一个高为12厘米的圆锥形量杯里装满了水，如果将这些水倒入与底面积相等的圆柱形量杯中，水面高多少厘米．
<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>