There are two ropes with a length of 12.56 decimeters, one enclosing a square and the other enclosing a circle, which figure has the larger area? How big is it?
两根长度都是12.56分米的绳子，一根围成正方形，另一根围成圆形，哪个图形的面积大？大多少？
<gadget id="calculator">12.56 / 4</gadget>
<output>3.14</output>

<gadget id="calculator">12.56 / 2 / 3.14</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">3.14 * 3.14</gadget>
<output>9.8596</output>

<gadget id="calculator">12.56 - 9.8596</gadget>
<output>2.7004</output>

<result>2.7004</result>