A rectangle has the same perimeter as a square. It is known that the length of the rectangle is 16 decimeters and the width is 12 decimeters. What is the area of the square?
一个长方形与一个正方形的周长相等，已知长方形的长是16分米，宽是12分米，这个正方形的面积是多少．
<gadget id="calculator">16 + 12</gadget>
<output>28</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">28 * (1/2)</gadget>
<output>14</output>

<gadget id="calculator">14 * 14</gadget>
<output>196</output>

<result>196</result>