Given that the circumference of a circle is 37.68 centimeters, what is the radius of the circle in centimeters?
已知一个圆的周长是37.68厘米，这个圆的半径是多少厘米？
<gadget id="calculator">37.68 / 3.14 / 2</gadget>
<output>6</output>

<result>6</result>