There is a small square pond in the garden, its circumference is 49 meters, what is its area in square meters?
花园里有一个正方形小池，它的周长是49米，它的面积是多少平方米？
<gadget id="calculator">49 / 4</gadget>
<output>49/4 = around 12.25</output>

<gadget id="calculator">(49/4) * (49/4)</gadget>
<output>2_401/16 = around 150.0625</output>

<result>2_401/16 = around 150.0625</result>