A cuboid water tank has a length of 10dm, a width of 8dm, and a water depth of 4.5dm. When a stone is put into the tank, the water level rises by 2dm. What is the volume of this rock?
一个长方体水箱，长10dm，宽8dm，水深4.5dm，当把一块石块放入水箱后，水位上升了2dm．这块石块的体积是多少？
<gadget id="calculator">10 * 8 * 2</gadget>
<output>160</output>

<result>160</result>