Make a cuboid frame with a 72 cm iron wire, the ratio of length, width and height is 4:3:2. If the surface of this cuboid is covered with a layer of paper, what is its surface area in square centimetres?
用一根72厘米的铁丝制成一个长方体框架，长、宽、高的比是4：3：2．如果把这个长方体表面糊一层纸，它的表面积是多少平方厘米．
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">4 + 3 + 2</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">18 * (4/9) * 18 * (1/3)</gadget>
<output>48</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">18 * (4/9) * 18 * (2/9)</gadget>
<output>32</output>

<gadget id="calculator">18 * (1/3) * 18 * (2/9)</gadget>
<output>24</output>

<gadget id="calculator">48 + 32 + 24</gadget>
<output>104</output>

<gadget id="calculator">104 * 2</gadget>
<output>208</output>

<result>208</result>