The base area of a cuboid is a square, and the height is 8dm. If the height is increased by 3dm, the surface area will increase by 72dm**2. What is the volume of the original cuboid?
一个长方体的底面积是正方形，高是8dm，如果把高增加3dm，表面积就增加72dm**2．原长方体的体积是多少立方分米？
<gadget id="calculator">72 / 3 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 8</gadget>
<output>288</output>

<result>288</result>