Put a pot of flowers every 0.628m on the edge of a circular fountain with a diameter of 8m, how many pots can be placed in total.
在直径是8m的圆形喷水池边上每隔0.628m放一盆花，一共可以放多少盆．
<gadget id="calculator">8 / 0.628</gadget>
<output>12.738854</output>

<gadget id="calculator">3.14 * 12.738854</gadget>
<output>40.000002</output>

<result>40.000002</result>