The length of a cuboid is 9 decimeters. If it is cut into two small cuboids along the height direction, the surface area will increase by 8 decimeters. What is the volume of the original cuboid?
一个长方体的长是9分米，如果沿着高的方向把它切成两个小长方体，那么表面积增加8平方分米，原来长方体的体积是多少立方分米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 * 9</gadget>
<output>36</output>

<result>36</result>