The circumference of a circular square is 314 meters, draw it on a 1:1000 drawing, what is the area of the circle on the drawing in square centimeters
一个圆形广场的周长是314米，把它画在1：1000的图纸上，图纸上圆的面积是多少平方厘米
<gadget id="calculator">314 / 3.14 / 2</gadget>
<output>50</output>

<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">50 * 100 * (1/1_000)</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25</gadget>
<output>78.5</output>

<result>78.5</result>