Use a 36 cm long iron wire to make a cube model, what is the surface area of the cube model in square centimeters?
用一根长36厘米的铁丝做一个正方体模型，这个正方体模型的表面积是多少平方厘米．
<gadget id="calculator">36 / 12</gadget>
<output>3</output>

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

<result>54</result>