A rectangle is 1.6m long and twice as long as it is wide. What is the area of this rectangle?
一个长方形，长是1.6m，长是宽的2倍，这个长方形的面积是多少？
<gadget id="calculator">1.6 / 2</gadget>
<output>0.8</output>

<gadget id="calculator">1.6 * 0.8</gadget>
<output>1.28</output>

<result>1.28</result>