If a 2.8-meter-long cuboid is sawed into two pieces, the surface area is increased by 600 square decimeters compared to the original one. What is the volume of this piece of wood in cubic meters?
把一根长2.8米的长方体木料锯成两段，表面积比原来增加600平方分米，这根木料的体积是多少立方米？
<gadget id="calculator">600 / 2 / 100</gadget>
<output>3</output>

<gadget id="calculator">3 * 2.8</gadget>
<output>8.4</output>

<result>8.4</result>