At least how many centimeters of iron wire are needed to make a cuboid frame with a base area of 16 square centimeters and a height of 3 centimeters.
至少需要多少厘米长的铁丝，才能做成一个底面积是16平方厘米的正方形，高是3厘米的长方体框架．
<gadget id="calculator">4 + 4 + 3</gadget>
<output>11</output>

<gadget id="calculator">11 * 4</gadget>
<output>44</output>

<result>44</result>