A cuboid has a length of 12 meters, a width of 4 meters and a height of 2 meters. How much does the surface area increase after sawing it into three sections?
一个长方体的长是12米，宽是4米，高是2米．把它锯三段后表面积增加多少㎡
<gadget id="calculator">4 * 2 * 4</gadget>
<output>32</output>

<result>32</result>