Liangliang’s family wants to replace a simple wardrobe with a length of 0.7m, a width of 0.5m, and a height of 2m with a cloth cover (without a bottom). How many square meters of cloth do you need at least?
亮亮家要给一个长0.7m，宽0.5m，高2m的简易衣柜换布罩(无底面)，至少需要用布多少平方米？
<gadget id="calculator">0.7 * 2</gadget>
<output>1.4</output>

<gadget id="calculator">0.5 * 2</gadget>
<output>1</output>

<gadget id="calculator">1.4 + 1</gadget>
<output>2.4</output>

<gadget id="calculator">2.4 * 2</gadget>
<output>4.8</output>

<gadget id="calculator">0.7 * 0.5</gadget>
<output>0.35</output>

<gadget id="calculator">4.8 + 0.35</gadget>
<output>5.15</output>

<result>5.15</result>