A cuboid iron water tank is 6dm high and the bottom is a square with side length 3dm. What is the volume of the water tank in L?
一个长方体铁皮水箱高6dm，底面是边长3dm的正方形，这个水箱的容积是多少L．
<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<result>54</result>