Divide a circle into 64 parts on average. The perimeter of the rectangle formed is 8 cm longer than the perimeter of the original circle. What is the area of the original circle in square centimeters? (π takes 3.14)
把一个圆平均分成64份，所拼成的长方形的周长比原来圆的周长长8厘米，原来圆的面积是多少平方厘米．(π取3.14)
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<result>50.24</result>