The perimeter of the cross-section of the cylindrical pillar of Guangming Primary School is 3.14 meters. What is the area of the cross-section of this pillar?
光明小学的圆柱形柱子的横截面的周长是3.14米，这根柱子的横截面的面积是多大？
<gadget id="calculator">3.14 / 3.14 / 2</gadget>
<output>0.5</output>

<gadget id="calculator">0.5 ** 2</gadget>
<output>0.25</output>

<gadget id="calculator">3.14 * 0.25</gadget>
<output>0.785</output>

<result>0.785</result>