A cuboid pool is 20 meters long, 10 meters wide, and 30 decimeters deep. How many square meters does this pool occupy?
一个长方体水池，长20米，宽10米，深30分米，这个水池占地多少平方米．
<gadget id="calculator">20 * 10</gadget>
<output>200</output>

<result>200</result>