A circular pool with a radius of 6 meters is surrounded by a circular path with a width of 1 meter. What is the area of this path in square meters?
一个半径是6米的圆形水池，周围有一条1米宽的环形小路，这条小路的面积是多少平方米？
<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<gadget id="calculator">7 ** 2</gadget>
<output>49</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">49 - 36</gadget>
<output>13</output>

<gadget id="calculator">3.14 * 13</gadget>
<output>40.82</output>

<result>40.82</result>