A rectangle has a length of 2.8 meters and a perimeter of 9.2, what is the area of the rectangle in square meters?
一个长方形，长2.8米，周长是9.2，这个长方形的面积是多少平方米？
<gadget id="calculator">9.2 / 2</gadget>
<output>4.6</output>

<gadget id="calculator">4.6 - 2.8</gadget>
<output>1.8</output>

<gadget id="calculator">2.8 * 1.8</gadget>
<output>5.04</output>

<result>5.04</result>