Using a 252m long iron wire to surround an equilateral triangle iron frame with a side length of 6m, how many such triangle frames can be enclosed?
用一根252m长的铁丝，围边长为6m的等边三角形铁框，可以围几个这样的三角形框架？
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">252 / 18</gadget>
<output>14</output>

<result>14</result>