To make a cube container (with a cover) with a bottom area of 25 square decimeters, how many square decimeters of iron sheet is needed at least?
做一个底面积25平方分米的正方体容器(有盖)，至少需要多少平方分米铁皮？
<gadget id="calculator">25 * 6</gadget>
<output>150</output>

<result>150</result>