A cuboid wardrobe with a length of 1.5m, a width of 1m, and a height of 1.2m is painted on its top, front, left and right sides. What is the minimum area to be painted?
一个长方体衣柜，长1.5m，宽1m，高1.2m，在它的上面、前面和左右面上刷油漆，刷油漆的面积至少是多少平方米？
<gadget id="calculator">1.5 * 1</gadget>
<output>1.5</output>

<gadget id="calculator">1.2 * 1.5</gadget>
<output>1.8</output>

<gadget id="calculator">1.2 * 1 * 2</gadget>
<output>2.4</output>

<gadget id="calculator">1.5 + 1.8 + 2.4</gadget>
<output>5.7</output>

<result>5.7</result>