The volume of a cuboid piece of wood is 540dm**3, and the area of its cross section is 20dm**2. What is the length of this piece of wood in dm?
一根长方体木料的体积是540dm**3，它的横截面的面积是20dm**2，这根木料的长是多少dm．
<gadget id="calculator">540 / 20</gadget>
<output>27</output>

<result>27</result>