In the figure, the side length of a regular hexagon and the perimeter of a small circle are the
same.If the circle rolls around the hexagon without sliding according to the direction of the arrow until it returns to the starting point.How many rounds does the circle go?求翻译!
人气：121 ℃ 时间：2020-05-09 16:33:11
解答
在图中,正六边形的边长和小圆的周长是相等的.如果该圆按照箭头方向沿着正六边形的边缘无滑动地滚动,直到回到起点.问该圆要滚动多少圈?
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