A cylindrical piece of wood is 1 meter long. After cutting it into 5 equal sections, the surface area increases by 25.12 square centimeters. What is the volume of this piece of wood in cubic centimeters?
一个圆柱形木材长1米，把它截成相等的5段后，表面积增加了25.12平方厘米．原来这根木材的体积是多少立方厘米？
<gadget id="calculator">25.12 / 8</gadget>
<output>3.14</output>

<gadget id="calculator">3.14 * 1 * 100</gadget>
<output>314</output>

<result>314</result>