24 students form a circle to play games on the playground, and the distance between every two adjacent students is 2 meters. What is the circumference of this circle in meters.
24个同学在操场上围成一个圆圈做游戏，每相邻两名同学之间都是2米．这个圆圈的周长是多少米．
<gadget id="calculator">2 * 24</gadget>
<output>48</output>

<result>48</result>