A cylindrical piece of wood is 1.5 meters long. If it is sawed into 3 sections along the cross section, the surface area increases by 12 square decimeters. What is the volume of this wood in cubic decimeters?
一根圆柱形的木料长1.5米，沿横截面把它锯成3段，表面积增加了12平方分米，原来这根木料的体积是多少立方分米．
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">1.5 * 10</gadget>
<output>15</output>

<gadget id="calculator">3 * 15</gadget>
<output>45</output>

<result>45</result>