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內切圓滾動
Author:
李春培
內切圓滾動
GeoGebra
New Resources
折扣
常见四边形是否是双心四边形
第八周作业
正方形雪花图案
异形操场
Discover Resources
橢圓
随机模拟实验(撒豆子估算π)的副本
与两圆都相切的动圆圆心的轨迹
探索到两定点的距离之积为定值的点的轨迹
圆柱沿着螺线展开成平行四边形
Discover Topics
Integral Calculus
Continuity
Geometric Distribution
Ellipse
Standard Deviation