A piece of iron wire is folded into a rectangle with a length of 1.2 meters and a width of 0.6 meters. If the wire is folded into an equilateral triangle, what is the side length of the equilateral triangle?
一根铁丝折成一个长方形，它的长是1.2米，宽是0.6米，如果把这根铁丝折成一个等边三角形，这个等边三角形的边长是多少．
<gadget id="calculator">1.2 + 0.6</gadget>
<output>1.8</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1.8 * (2/3)</gadget>
<output>1.2</output>

<result>1.2</result>