A 2-meter-long cuboid wood is sawn into 3 sections, and the surface area increases by 24 square decimeters. What is the cross-sectional area of this cuboid wood?
一根2米长的长方体木料，把它锯成3段，表面积增加了24平方分米，这根长方体木料的横截面积是多少平方分米
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<result>6</result>