rectangular parallelepiped glass container has a length and width of 3dm from the inside. Pour 9L of water into the container, and then put a small ball into the water. At this time, the water depth of the container is 1.6dm. What is the volume of the small ball?
一个长方体玻璃容器，从里面量长、宽均为3dm，向容器中倒入水9L，再把小球放入水中，这时容器的水深1.6dm，这个小球的体积是多少？
<gadget id="calculator">3 * 3 * 1.6</gadget>
<output>14.4</output>

<gadget id="calculator">14.4 - 9</gadget>
<output>5.4</output>

<result>5.4</result>