A rectangular piece of paper has a length of 12 cm and a width of 10 cm. After cutting the largest circle out of this piece of paper, what is the area in square centimeters?
一张长方形的纸片，它的长是12厘米，宽是10厘米．在这张纸片上剪去一个最大的圆后，剩下部分的面积是多少平方厘米？
<gadget id="calculator">12 * 10</gadget>
<output>120</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25</gadget>
<output>78.5</output>

<gadget id="calculator">120 - 78.5</gadget>
<output>41.5</output>

<result>41.5</result>