The lawn in the park is a rectangle, the width is 40.5 meters, and the length is 1.5 times the width. How many square meters is the area of this rectangle?
公园里的草坪是个长方形，宽是40.5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">40.5 * 1.5 * 40.5</gadget>
<output>2_460.375</output>

<result>2_460.375</result>