The perimeter of a rectangle is 2 meters. Cut the rectangle along the line connecting the midpoints of the longer sides and divide it into two similar small rectangles. The sum of their perimeters is 6 decimeters longer than the perimeter of the original rectangle. What is the area of the original rectangle.
一个长方形周长为2米，沿较长边的中点连线把这个长方形剪开，分成两个同样的小长方形，它们周长的和比原长方形的周长增加了6分米．原长方形的面积是多少．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">0.6 / 2</gadget>
<output>0.3</output>

<gadget id="calculator">1 - 0.3</gadget>
<output>0.7</output>

<gadget id="calculator">0.7 * 0.3</gadget>
<output>0.21</output>

<result>0.21</result>