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B4 4-1 平行線性質延伸 等積變換
Author:
AlexWang
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
畫出對稱圖形
球體建築師
三位數除以一位數（一）
Discover Resources
發現畢氏定理
軌跡觀察---兩圓上線段中點
gjc090c21內切圓的圓心
圖形C
学习 GeoGebra 3D 计算器
Discover Topics
Multiplication
Terms
Vectors 2D (Two-Dimensional)
Geometric Mean
Logarithmic Functions