Xiao Ming’s house has a circular swimming pool with a circumference of 18.84 meters. How many square meters does this swimming pool occupy?
小明家有一个周长18.84米的圆形游泳池，这个游泳池的占地面积是多少平方米？
<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>

<result>28.26</result>