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任意正N边形在圆内滚动顶点的轨迹
Author:
孟宝兴
GeoGebra
New Resources
小数 的副本
直角坐標平面上的旋轉變換
國旗 (Claude 版)
美國國旗 (Codex, 2026.10.06)
Nested spiral octagon
Discover Resources
代數運算：外心座標
中點軌跡(動點在兩圓上)
CACTM對稱及變換
Pappus Chain
了解圓方程(1)的副本
Discover Topics
Angles
Scalene Triangles
Vectors 2D (Two-Dimensional)
Subtraction
Percentages