A factory club has a circular dance floor with a circumference of 50.24 meters. Now it is planned to widen the circumference by 1 meter. How much can the area of the dance floor be increased?
某厂俱乐部有一个圆形舞池，周长50.24米，现准备周围加宽1米，这样舞池面积可增加多少？
<gadget id="calculator">50.24 / 3.14 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 + 1</gadget>
<output>9</output>

<gadget id="calculator">9 ** 2</gadget>
<output>81</output>

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

<gadget id="calculator">81 - 64</gadget>
<output>17</output>

<gadget id="calculator">3.14 * 17</gadget>
<output>53.38</output>

<result>53.38</result>