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以 Unit Circle 了解 Sine 的正/負的副本
Author:
xiaoqing xia
,
gklwong
以 Unit Circle 了解 Sine 的正/負
GeoGebra
New Resources
畫出對稱圖形
四邉形 (四年級) 教師版
找出對稱軸
美國國旗 (Codex 版)
國旗 (Claude 版)
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立體幾何
Sum of Exterior Angles of Polygons 多邊形外角和
直升機遊香港：尋找地方遊戲
拼出三角形的副本
seven-eighths sphere 八分之七球面
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Special Points
Similar Triangles
Ratios
Vectors 2D (Two-Dimensional)
Reflection