After cutting a 1.8-meter-long cylindrical steel into three small cylindrical steels, the surface area increases by 24 square meters compared with the original one. What is the original volume of this cylindrical steel in cubic meters?
把一根长1.8米的圆柱形钢材截成3个小圆柱形钢材后，表面积比原来增加了24平方米，这根圆柱形钢材原来的体积是多少立方米．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 1.8</gadget>
<output>10.8</output>

<result>10.8</result>