A 36 cm long iron wire forms a square, what is the side length of the square, and how much can be listed
把一根长36厘米的铁丝围成一个正方形，求正方形的边长是多少，可以列式为多少
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<result>9</result>