The width of a rectangle is 2.5 meters, and the length is 1.4 times the width. What is the area of the rectangle?
一个长方形的宽是2.5米，长是宽的1.4倍，这个长方形的面积是多少平方米？
<gadget id="calculator">2.5 * 1.4</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 * 2.5</gadget>
<output>8.75</output>

<result>8.75</result>