A circular swimming pool has a bottom circumference of 25.12 meters and a depth of 0.75 meters. What is the area occupied by this swimming pool?
圆形游泳池，底面周长是25.12米，深是0.75米，这个游泳池的占地面积是多少．
<gadget id="calculator">25.12 / 3.14 / 2</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>