cuboid square steel, 9 meters long, is divided into 3 sections, and the surface area increases by 24 square decimeters. What is the volume of this cuboid square steel?
一根长方体方钢，长9米，把它分成3段，表面积增加24平方分米．这根长方体方钢体积是多少立方分米？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">9 * 10</gadget>
<output>90</output>

<gadget id="calculator">6 * 90</gadget>
<output>540</output>

<result>540</result>