A rectangle has the same perimeter as a square. If the perimeter of the square is 48 decimeters and the length of the rectangle is 16 decimeters, what is the area of the rectangle in square decimeters?
一个长方形与一个正方形周长相等，如果正方形的周长是48分米，长方形的长是16分米，长方形的面积是多少平方分米．
<gadget id="calculator">48 / 2</gadget>
<output>24</output>

<gadget id="calculator">24 - 16</gadget>
<output>8</output>

<gadget id="calculator">16 * 8</gadget>
<output>128</output>

<result>128</result>