To draw a circle with a circumference of 18.84 cm, how many centimeters should be taken between the two feet of the compass
要画一个周长是18.84厘米的圆，那么圆规两脚之间应取多少厘米
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<result>3</result>