The radius of the circular flower bed in the center of Xixi Park is 2 meters. If a path with a width of 2 meters is built along the edge of the flower bed, what is the area of the path in square meters?
西溪公园中心的圆形花坛半径是2米，如果沿花坛的边沿修筑一条宽2米的小路，这条小路的面积是多少平方米．
<gadget id="calculator">2 + 2</gadget>
<output>4</output>

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

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

<gadget id="calculator">16 - 4</gadget>
<output>12</output>

<gadget id="calculator">3.14 * 12</gadget>
<output>37.68</output>

<result>37.68</result>