Xiao Ming just formed a rectangle with a length of 18 meters and a width of 14 meters with a rope. If it forms the largest square, what is the side length of the square?
小明用一条绳子刚好围成了一个长18米，宽14米的长方形，若围成一个最大的正方形，正方形的边长是多少？
<gadget id="calculator">18 + 14</gadget>
<output>32</output>

<gadget id="calculator">32 * 2</gadget>
<output>64</output>

<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<result>16</result>