A cylindrical piece of wood with a length of 3 meters is sawed into 3 equal sections, and the surface area is increased by 3.6 square decimeters. What is the volume of each piece of wood in cubic decimeters?
将一根长3米的圆柱形木料锯成相等的3段，表面积增加了3.6平方分米，每段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">3 / 3</gadget>
<output>1</output>

<gadget id="calculator">0.9 * 1 * 10</gadget>
<output>9</output>

<result>9</result>