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正四面體交角
Author:
lamanleung
GeoGebra
New Resources
判斷球體
兩組對邊相等和有直角的四邊形
畫出對稱圖形
三位數除以一位數（一）
錐體建築師
Discover Resources
Sum of Exterior Angles of Polygons 多邊形外角和
transformation_reflection
Angles in pyramid
旋轉縮小的正方形
滑桿
Discover Topics
Probability
Vectors
Linear Regression
LCM and GCD
Limits