A square wire frame with a side length of 6 cm is straightened and surrounded by a circular wire circle. What is the diameter of the wire circle in cm? (π takes 3)
把一个边长为6厘米的正方形铁丝框，拉直后围成一个圆形铁丝圈儿，铁丝圈儿的直径是多少cm．(π取3)
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">6 * (4/3)</gadget>
<output>8</output>

<result>8</result>