Draw the largest circle inside a square with a circumference of 24 decimeters. What is the circumference of this circle in decimeters?
在周长为24分米的正方形内画一个最大的圆，这个圆的周长是多少分米？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">3.14 * 6</gadget>
<output>18.84</output>

<result>18.84</result>