The height of a cylindrical piece of wood is 1 meter. If it is cut into two pieces, the surface area will increase by 12.56 square decimeters. What is the volume of this piece of wood?
一根圆柱形木料的高是1米，如果把它截成两段，表面积增加12.56平方分米．这根木料的体积是多少？
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 * 1 * 10</gadget>
<output>62.8</output>

<result>62.8</result>