Given that the circumference of a circle is 50.24 decimeters, what is the area of the circle?
已知圆的周长是50.24分米，圆的面积是多少．
<gadget id="calculator">50.24 / 3.14 / 2</gadget>
<output>8</output>

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

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

<result>200.96</result>