If a 6-meter-long cylinder is cut into 3 sections, the surface area increases by 25.12 square meters. What is the volume of this cylinder in cubic meters?
把一根长6米圆柱形的木料截成3段，表面积增加了25.12平方米，这个圆柱的体积是多少立方米．
<gadget id="calculator">25.12 / 4</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 * 6</gadget>
<output>37.68</output>

<result>37.68</result>