The length of a rectangular steel plate is 1.8 meters, and the width is long (2/3). If a largest circle is cut out with it, what is the remaining area?
一块长方形钢板的长1.8米，宽是长的(2/3)，用它截出一个最大的圆，剩余面积是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1.8 * (2/3)</gadget>
<output>1.2</output>

<gadget id="calculator">1.8 * 1.2</gadget>
<output>2.16</output>

<gadget id="calculator">1.2 / 2</gadget>
<output>0.6</output>

<gadget id="calculator">0.6 ** 2</gadget>
<output>0.36</output>

<gadget id="calculator">3.14 * 0.36</gadget>
<output>1.1304</output>

<gadget id="calculator">2.16 - 1.1304</gadget>
<output>1.0296</output>

<result>1.0296</result>