6-meter-long iron wire surrounds the largest square, what is the side length of the square?
用一条6米长的铁丝围一个最大的正方形，这个正方形的边长是多少米？
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>