There is a square tile whose perimeter is 24dm, what is the area of this tile?
有一块正方形地砖，它的周长是24dm，这块地砖的面积是多少？
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

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

<result>36</result>