A rectangular iron sheet with a length of 25.12 cm and a width of 18.84 cm can be used to make a cylindrical container with the largest volume when combined with the following d= how many circular iron sheets. (unit; cm)
用一块长25.12厘米，宽18.84厘米的长方形铁皮，配上下面d=多少圆形铁片正好可以做成圆柱形容器且容积最大．(单位；厘米)
<gadget id="calculator">18.84 / 3.14</gadget>
<output>6</output>

<result>6</result>