A circular goldfish pond is built in the garden with a circumference of 25.12 meters. A cobblestone path with a width of 1 meter is paved around the goldfish pond. What is the area of this path in square meters?
花园里修建了一个圆形金鱼池，其周长为25.12米，在金鱼池的周围铺一条宽1米的鹅卵石小路，这条小路的面积是多少平方米？
<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

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

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

<gadget id="calculator">25 - 16</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<result>28.26</result>