The lawn in the park is a rectangle, the width is 3.6 meters, and the length is 1.5 times the width. What is the area of this rectangle?
公园里的草坪是个长方形，宽是3.6米，长是宽的1.5倍，这个长方形的面积是多少平方米？
<gadget id="calculator">3.6 * 1.5 * 3.6</gadget>
<output>19.44</output>

<result>19.44</result>