A circle has the same area as a rectangle. The circumference of the circle is 18.84 cm. The length of the rectangle is 6 cm. What is the width in cm?
一个圆与一个长方形面积相等，圆周长是18.84厘米，长方形长6厘米，宽是多少厘米？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<gadget id="calculator">28.26 / 6</gadget>
<output>4.71</output>

<result>4.71</result>