Xiaoyan's mother wants to sew a machine cover (without a bottom) for the washing machine. The length of the washing machine is 58.5 cm, the width is 42 cm, and the height is 80 cm. How many square meters does Xiaoyan's mother need to use at least?
小妍妈妈想给洗衣机缝制一个机套(没有底面)，洗衣机长58.5厘米，宽42厘米，高80厘米．小妍妈妈至少需要用布多少平方米？
<gadget id="calculator">58.5 + 42</gadget>
<output>100.5</output>

<gadget id="calculator">100.5 * 2 * 80</gadget>
<output>16_080</output>

<gadget id="calculator">58.5 * 42</gadget>
<output>2_457</output>

<gadget id="calculator">16_080 + 2_457</gadget>
<output>18_537</output>

<gadget id="calculator">18_537 / 10_000</gadget>
<output>18_537/10_000 = around 1.8537</output>

<result>18_537/10_000 = around 1.8537</result>