To make a cuboid ventilating pipe with a length and width of 6 decimeters and a height of 8 meters, at least how many square meters of iron sheets are needed?
做一个长和宽都是6分米，高8米的长方体通风管，至少需耍多少平方米的铁皮？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 8 * 4</gadget>
<output>96/5 = around 19.2</output>

<result>96/5 = around 19.2</result>