A cube gift box with a side length of 1.5dm, how many square decimeters of wrapping paper should be used to wrap this gift box at least? (Connectors are not included.)
一个正方体礼盒，棱长为1.5dm，包装这个礼品盒至少要用多少平方分米的包装纸？(接头不计．)
<gadget id="calculator">1.5 * 1.5 * 6</gadget>
<output>13.5</output>

<result>13.5</result>