A cube container, the length of the side is 20 cm from the inside, after taking out the iron block submerged in the water, the water level drops by 3 cm, what is the volume of the iron block?
一个正方体容器，从里面量棱长20厘米，将浸没在水中的铁块取出后，水面下降了3厘米，这个铁块的体积是多少？
<gadget id="calculator">20 * 20 * 3</gadget>
<output>1_200</output>

<result>1_200</result>