There is a circular pool with a circumference equal to 25.12 meters, what is the area in square meters?
有一个圆形水池，周长等于25.12米，它的占地面积是多少平方米？
<gadget id="calculator">25.12 / 2 / 3.14</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<result>50.24</result>