The circumference of a circular vegetable field is 56.52 meters. After it is widened by 1 meter, how many square meters does this field increase compared to the original one?
一块圆形菜地的周长是56.52米，在它的周围加宽1米后，这块莱地比原来增加了多少平方米．
<gadget id="calculator">56.52 / 3.14 / 2</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

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

<gadget id="calculator">100 - 81</gadget>
<output>19</output>

<gadget id="calculator">3.14 * 19</gadget>
<output>59.66</output>

<result>59.66</result>