A cuboid surrounded by a wire has a length of 12dm, a width of 8dm, and a height of 4dm. If it is changed into a cube, how many decimeters is the side length of the cube?
用一根铁丝围成的长方体，长为12dm，宽为8dm，高为4dm．如果改围成一个正方体，那么这个正方体的棱长是多少分米？
<gadget id="calculator">12 + 8 + 4</gadget>
<output>24</output>

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">24 * (1/3)</gadget>
<output>8</output>

<result>8</result>