Cut out the largest circle on a piece of rectangular paper with a length of 8 cm and a width of 6 cm. What is the area of this circle in square centimeters?
在一张长8厘米，宽6厘米的长方形纸上剪一个最大的圆，这个圆的面积是多少平方厘米
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<result>28.26</result>