The circumference of a circular sheepfold is about 94.2 meters. How many square meters does it cover?
一个圆形羊圈的周长约94.2米，它的占地面积大约是多少平方米？
<gadget id="calculator">94.2 / 3.14 / 2</gadget>
<output>15</output>

<gadget id="calculator">15 ** 2</gadget>
<output>225</output>

<gadget id="calculator">3.14 * 225</gadget>
<output>706.5</output>

<result>706.5</result>