A goldfish tank is 6 decimeters long and 4 decimeters wide, and the water depth inside is 2 decimeters. After a rockery is immersed in the water (all the rockery is immersed in the water), the water level rises by 1.2 decimeters. What is the volume of the rockery in cubic meters? rice?
一个金鱼缸，长6分米、宽4分米，里面水深，2分米，把一块假山石浸入水中后(假山全部浸入水中)水面上升了1.2分米，这块假山石的体积是多少立方米？
<gadget id="calculator">6 * 4 * 1.2</gadget>
<output>28.8</output>

<result>28.8</result>