Liangliang’s family needs to provide a simple wardrobe cloth cover (without a bottom) with a length of 0.7 meters, a width of 0.5 meters, and a height of 1.2 meters. At least how many square meters of cloth is needed?
亮亮家要给一个长0.7米，宽0.5米，高1.2米的简易衣柜布罩(没有底面)．至少需要用布多少平方米？
<gadget id="calculator">0.7 * 0.5</gadget>
<output>0.35</output>

<gadget id="calculator">0.7 * 1.2</gadget>
<output>0.84</output>

<gadget id="calculator">1.2 * 0.5</gadget>
<output>0.6</output>

<gadget id="calculator">0.35 + 0.84 + 0.6</gadget>
<output>1.79</output>

<gadget id="calculator">1.79 * 2</gadget>
<output>3.58</output>

<gadget id="calculator">3.58 - 0.35</gadget>
<output>3.23</output>

<result>3.23</result>