If the circumference of a circle is 50.24 meters, what is its area in square meters?
一个圆的周长是50.24米，它的面积是多少平方米．
<gadget id="calculator">50.24 / 2 / 3.14</gadget>
<output>8</output>

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

<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>

<result>200.96</result>