A circular flower bed is 14 meters in diameter, and a path with a width of 1 meter is to be built around the periphery. What is the area of this path?
一个圆形花坛直径14米，要在外围修一条宽1米的小路，这条小路的面积是多少？
<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

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

<gadget id="calculator">64 - 49</gadget>
<output>15</output>

<gadget id="calculator">3.14 * 15</gadget>
<output>47.1</output>

<result>47.1</result>