There is a square experimental field with a circumference of 24 meters, what is its area in square meters?
有一块正方形实验田，周长24米，它的面积是多少平方米？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<result>36</result>