A rope is 9.42 meters long. A circle is formed by this rope. What is the longest diameter of this circle in meters?
一根绳子长9.42米，用这根绳子围成一个圆，这个圆的直径最长是多少米？
<gadget id="calculator">9.42 / 3.14</gadget>
<output>3</output>

<result>3</result>