A circle with a radius of 12 cm is rolled 10 times in a straight line, how far is the center of the circle moved?
一个半径为12厘米的圆，沿直线滚动10次，圆心移动的距离是多少厘米？
<gadget id="calculator">2 * 3.14 * 12 * 10</gadget>
<output>753.6</output>

<result>753.6</result>