The diameter of a circular flower bed is 10 meters. Place flower pots around the flower bed, and place a pot every 1.57 meters. How many pots can be placed in total?
一个圆形花坛的直径是10米，在花坛的周围摆上花盆，每隔1.57米放一盆，一共可以放多少盆？
<gadget id="calculator">10 / 1.57</gadget>
<output>6.369427</output>

<gadget id="calculator">3.14 * 6.369427</gadget>
<output>20.000001</output>

<result>20.000001</result>