A cuboid is 9 meters long, 3 meters wide and 3 meters high. If it is cut into three smaller cubes of the same size, how many square meters will the surface area increase?
一个长方体长9米，宽和高都是3米，把它横截成三个大小一样的小正方体，表面积增加了多少平方米
<gadget id="calculator">3 * 3 * 4</gadget>
<output>36</output>

<result>36</result>