A circular flower bed has a diameter of 10 meters, and a path with a width of 2 meters is laid on the periphery of the flower bed. What is the area of this circular path?
一个圆形花坛，它的直径是10米，在花坛的外围铺上一条宽2米的小路．这条环形小路的面积是多少？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 + 2</gadget>
<output>7</output>

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

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

<gadget id="calculator">49 - 25</gadget>
<output>24</output>

<gadget id="calculator">3.14 * 24</gadget>
<output>75.36</output>

<result>75.36</result>