A cube of iron with side length 10cm is melted and cast into a cuboid with a length of 5cm and a width of 4cm. What is the height of the cuboid?
将棱长10cm的正方体铁块熔铸成一个长5cm，宽4cm的长方体，这个长方体铁块的高是多少．
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">10 / 20</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 * 10 * (1/2)</gadget>
<output>50</output>

<result>50</result>