Obviously to draw a circle with a circumference of 31.4 cm, how many centimeters should he set the distance between the two feet of the compass? how many centimeters
明明要画一个周长是31.4厘米的圆，他应将圆规两脚张开的距离定为多少厘米？多少厘米
<gadget id="calculator">31.4 / 3.14 / 2</gadget>
<output>5</output>

<result>5</result>