A 36 cm long iron wire is welded to form the largest cube model, what is its surface area?
用一根36厘米长的铁丝焊成一个最大的正方体模型，它的表面积是多少．
<gadget id="calculator">36 / 12</gadget>
<output>3</output>

<gadget id="calculator">3 * 3 * 6</gadget>
<output>54</output>

<result>54</result>