Aunt Wang wants to cut the largest square floral cloth from a rectangular floral cloth with a length of 7 meters and a width of 4 meters. What is the circumference of this square floral cloth in meters?
王阿姨要在一块长7米，宽4米的长方形花布上剪下一块最大的正方形花布，这块正方形花布的周长是多少米？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<result>16</result>