If a 6 decimeter long cuboid is sawed into 3 sections on average, the surface area increases by 3.6 decimeters, what is the volume of this piece of wood in cubic decimeters?
把一根长6分米的长方体材料平均锯成3段，表面积增加3.6平方分米，这根木料的体积是多少立方分米．
<gadget id="calculator">3.6 / 4</gadget>
<output>0.9</output>

<gadget id="calculator">0.9 * 6</gadget>
<output>5.4</output>

<result>5.4</result>