The circumference of a circular fountain is 62.8m. There is a 1m wide cement road outside the pool. What is the area of the road in square meters? (π takes 3.14)
一个圆形喷水池的周长是62.8m，在水池外边有一条1m宽的水泥路，路的面积是多少平方米？(π取3.14)
<gadget id="calculator">62.8 / 3.14 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">11 ** 2</gadget>
<output>121</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">121 - 100</gadget>
<output>21</output>

<gadget id="calculator">3.14 * 21</gadget>
<output>65.94</output>

<result>65.94</result>