If 80 liters of water are poured into a square container with side length 4dm, what is the height of the water in dm?
把80升的水倒入一个棱长为4dm的正方形容器里，水的高度是多少dm．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">80 / 16</gadget>
<output>5</output>

<result>5</result>