The circumference of a circular flower bed is 12.56 meters, and a path with a width of 0.5 meters is built around it. What is the area of this path in square meters?
一个圆形形花坛的周长是12.56米，绕着它的周围在外沿修一条宽0.5米的小路．这条小路的面积是多少平方米？
<gadget id="calculator">2 * 3.14</gadget>
<output>6.28</output>

<gadget id="calculator">12.56 / 6.28</gadget>
<output>2</output>

<gadget id="calculator">2 + 0.5</gadget>
<output>2.5</output>

<gadget id="calculator">2.5 ** 2</gadget>
<output>6.25</output>

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

<gadget id="calculator">6.25 - 4</gadget>
<output>2.25</output>

<gadget id="calculator">3.14 * 2.25</gadget>
<output>7.065</output>

<result>7.065</result>