If a cylindrical piece of wood with a length of 2 meters is sawed into 4 sections, the surface area of the wood increases by 300 square decimeters, what is the volume of this piece of wood in cubic decimeters?
把一根长2米的圆柱形木料锯成4段，木料的表面积增加了300平方分米，这根木料的体积是多少立方分米．
<gadget id="calculator">300 / 6</gadget>
<output>50</output>

<gadget id="calculator">50 * 2 * 10</gadget>
<output>1_000</output>

<result>1_000</result>