A cuboid box has a length of 2.5 meters, a width of 0.8 meters, and a height of 2 meters. What is its surface area?
一个长方体箱子，长是2.5米，宽是0.8米，高是2米，它的表面积是多少平方分米？
<gadget id="calculator">2.5 * 0.8</gadget>
<output>2</output>

<gadget id="calculator">2.5 * 2</gadget>
<output>5</output>

<gadget id="calculator">0.8 * 2</gadget>
<output>1.6</output>

<gadget id="calculator">2 + 5 + 1.6</gadget>
<output>8.6</output>

<gadget id="calculator">8.6 * 2</gadget>
<output>17.2</output>

<result>17.2</result>