The circumference of the circular flower bed in the central square is 28.26 meters. What is its area in square meters?
中心广场圆形花坛的周长是28.26米，它的面积是多少平方米？
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">28.26 / 6.28</gadget>
<output>4.5</output>

<gadget id="calculator">4.5 ** 2</gadget>
<output>20.25</output>

<gadget id="calculator">3.14 * 20.25</gadget>
<output>63.585</output>

<result>63.585</result>