Obviously walked around a square flower bed twice, a total of 16 meters. What is the perimeter of this square flowerbed in meters.
明明围着一个正方形的花坛走了2圈，一共走了16米．这个正方形花坛的周长是多少米．
<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<result>8</result>