A rectangular landscape painting is twice as long as it is wide, and 1.8 meters of wooden strips are used to make the frame. What is the area of the painting in square meters?
一幅长方形风景画，它的长是宽的2倍，做画框用了1.8米木条，这幅画的面积是多少平方米？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">2 + 4</gadget>
<output>6</output>

<gadget id="calculator">1.8 / 6</gadget>
<output>0.3</output>

<gadget id="calculator">0.3 * 2 * 0.3</gadget>
<output>0.18</output>

<result>0.18</result>