cylinder of steel is 6 meters long. If it is cut into 3 equal sections along the direction parallel to the bottom, the surface area will increase by 12.56 square meters. What is the volume of each small cylinder after cutting.
一根圆柱体钢材长6米，如果沿着与底面平行的方向，将它切成相等的3段，表面积就增加了12.56平方米．切开后每个小圆柱的体积是多少立方米．
<gadget id="calculator">12.56 / 4</gadget>
<output>3.14</output>

<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">3.14 * 2</gadget>
<output>6.28</output>

<result>6.28</result>