Draw a circle as large as possible on a piece of rectangular paper with a length of 8 cm and a width of 6 cm. The distance between the two feet of the compass should be determined in centimeters.
在一张长8厘米、宽6厘米的长方形纸上画一个尽可能大的圆，圆规两脚间的距离应确定为多少厘米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>