A cuboid wooden box without a cover is 1.2m long, 0.6m wide and 0.5m high. If this wooden box is to be painted, how many square meters is the painted area?
一个无盖的长方体木箱，长1.2m，宽0.6m，高0.5m．如果要油漆这个木箱，油漆的面积是多少平方米？
<gadget id="calculator">1.2 * 0.6</gadget>
<output>0.72</output>

<gadget id="calculator">1.2 * 0.5 * 2</gadget>
<output>1.2</output>

<gadget id="calculator">0.6 * 0.5 * 2</gadget>
<output>0.6</output>

<gadget id="calculator">0.72 + 1.2 + 0.6</gadget>
<output>2.52</output>

<result>2.52</result>