Divide a cylinder with a diameter of 2 decimeters into several parts along the diameter of the bottom surface from top to bottom. Then assemble an approximate cuboid equal to its volume, the surface area of this cuboid increases by 6 square decimeters compared with the surface area of the original cylinder. What is the volume of the cuboid?
把一个直径2分米的圆柱，沿底面直径从上到下分成若干份．然后拼成一个与它体积相等的近似长方体，这个长方体的表面比原来的圆柱体的表面积增加6平方分米．长方体的体积是多少？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">3 * 3.14</gadget>
<output>9.42</output>

<result>9.42</result>