A square floor tile has a perimeter of 24 decimeters, what is its area?
有一块正方形地砖，周长是24分米，它的面积是多少平方分米？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

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

<result>36</result>