From a rectangle with a length of 62.8 cm, subtract the circle with the largest area, and the area of the remaining part is half of the area of the original rectangle. What is the width of the original rectangle in centimeters?
在一个长为62.8cm的长方形中，减去一个面积最大的圆，剩下部分的面积为原来长方形面积的一半，则原来长方形的宽是多少厘米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">6.28 * (1/4)</gadget>
<output>1.57</output>

<gadget id="calculator">62.8 / 1.57</gadget>
<output>40</output>

<result>40</result>