The sum of the lengths of the sides of a cuboid is 72 decimeters, and the ratio of length, width and height is 5:2:2. What is the surface area of this cuboid?
一个长方体的棱长总和是72分米，长、宽、高的比是5：2：2，这个长方体的表面积是多少平方分米？
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">5 + 2 + 2</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

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

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

<gadget id="calculator">18 * (5/9) * 18 * (2/9)</gadget>
<output>40</output>

<gadget id="calculator">18 * (2/9) * 18 * (2/9)</gadget>
<output>16</output>

<gadget id="calculator">40 + 40 + 16</gadget>
<output>96</output>

<gadget id="calculator">96 * 2</gadget>
<output>192</output>

<result>192</result>