The lamb and the rabbit move from the same place to opposite directions simultaneously on a circular grass field with a radius of 60 meters. The rabbit travels 28.26 meters per minute, and the lamb travels 18.84 meters per minute. How many minutes later will they meet?
小羊和小兔在一个半径是60米的圆形草地上同时从同一地点向相反的方向运动，小兔每分钟行28.26米，小羊每分钟行18.84米，它们几分钟后相遇？
<gadget id="calculator">2 * 3.14 * 60</gadget>
<output>376.8</output>

<gadget id="calculator">28.26 + 18.84</gadget>
<output>47.1</output>

<gadget id="calculator">376.8 / 47.1</gadget>
<output>8</output>

<result>8</result>