Shun Shun takes a piece of rectangular paper with a length of 18cm and a width of 16cm. Use this paper to cut out the largest circle. What is the remaining area in square centimeters?
顺顺拿一张长18cm，宽16cm的长方形纸，用这张纸剪掉一个最大的圆，剩下的面积是多少平方厘米．
<gadget id="calculator">16 * 18</gadget>
<output>288</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>

<gadget id="calculator">288 - 200.96</gadget>
<output>87.04</output>

<result>87.04</result>