A cuboid piece of wood is 3m long. After cutting it into four sections along the cross section, the surface area increases by 8.64dm**2 compared to the original one. What is the volume of this piece of wood dm**3?
一根长方体木料长3m，把它沿着横截面截成四段后，表面积比原来增加了8.64dm**2，这根木料的体积是多少dm**3？
<gadget id="calculator">8.64 / 6</gadget>
<output>1.44</output>

<gadget id="calculator">1.44 * 3 * 10</gadget>
<output>43.2</output>

<result>43.2</result>