A cylindrical piece of wood is 9 decimeters high. After cutting into two smaller cylinders, the surface area increases by 36 square decimeters. What is the volume of this piece of wood?
一个圆柱形木料高9分米，切成两个小圆柱后，表面积增加36平方分米，这根木料的体积是多少立方分米？
<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">18 * 9</gadget>
<output>162</output>

<result>162</result>