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大十字
Author:
陳柄何
GeoGebra
New Resources
科氏力 (Coriolis Force)
龙形曲线-分形龙
盈利與虧蝕
常见四边形是否是双心四边形
第八周作业2
Discover Resources
Sum of Interior Angles of Polygons 多邊形內角和
實驗與觀察
GeoGebra Book
製作對稱圖形 level 2
test01
Discover Topics
Constructions
Polygons
Circumcircle or Circumscribed Circle
Geometry
Rectangle