In a square with a circumference of 56 cm, cut the largest circle, what is the circumference of this circle in cm?
在一个周长是56厘米的正方形内，剪一个最大的圆形，这个圆的周长是多少厘米？
<gadget id="calculator">56 / 4</gadget>
<output>14</output>

<gadget id="calculator">3.14 * 14</gadget>
<output>43.96</output>

<result>43.96</result>