Xiaohua exercises every day and needs to run around a square square with a circumference of 200 meters. Please help Xiaoqiang do the math. What is the area of this square square in square meters?
小华每天锻炼身体，要绕周长200米的正方形广场跑步，请你帮小强算一算，这个正方形广场的面积是多少平方米？
<gadget id="calculator">200 / 4</gadget>
<output>50</output>

<gadget id="calculator">50 * 50</gadget>
<output>2_500</output>

<result>2_500</result>