A piece of iron wire is 48 cm long. Xiao Ming forms a square around it. What is the side length of the square?
一根铁丝长48厘米，小明把它围成了一个正方形，那么正方形的边长是多少？
<gadget id="calculator">48 / 4</gadget>
<output>12</output>

<result>12</result>