A cylindrical piece of wood is 5 meters long. If it is sawn into three identical small cylinders, its surface area will increase by 0.36 square meters. Find the volume of this piece of wood.
一根圆柱形木料长5米，把它锯成3段完全一样的小圆柱，它的表面积增加0.36平方米，求这根木料的体积．
<gadget id="calculator">0.36 / 4</gadget>
<output>0.09</output>

<gadget id="calculator">0.09 * 5</gadget>
<output>0.45</output>

<result>0.45</result>