Use a piece of rectangular paper with a length of 4 cm and a width of 3 cm to cut out the largest circle. What is the area of this circle in centimeters**2.
用一张长4厘米、宽3厘米的长方形纸，剪下一个最大的圆，这个圆的面积是多少厘米**2．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) ** 2</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">3.14 * (9/4)</gadget>
<output>7.065</output>

<result>7.065</result>