A cylindrical piece of wood is 2 meters long, and if it is cut into two sections, the surface area increases by 25.12 square decimeters compared to the original. What is the volume of this piece of wood in cubic meters?
一根圆柱形状的木材长2米，把它截成2段，表面积比原来增加了25.12平方分米．这根木材的体积是多少立方米．
<gadget id="calculator">25.12 / 100 / 2</gadget>
<output>0.1256</output>

<gadget id="calculator">0.1256 * 2</gadget>
<output>0.2512</output>

<result>0.2512</result>