Dig a cuboid pool with a length of 5m, a width of 4m, and a depth of 2.6m. What is the floor area of this pool in m**2.
挖一个长5m、宽4m、深2.6m的长方体水池，这个水池的占地面积是多少m**2．
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<result>20</result>