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完全图及其变形
Author:
卢德洪
Topic:
Rotation
,
Geometric Transformations
GeoGebra
New Resources
直角坐標平面上的旋轉變換
画直线等分三角形的面积
三位數除以一位數（一）
異分母分數減法
兩組對邊相等的四邊形
Discover Resources
周子翔 畢氏定理--2
barara magic stick
四點距離最小
斜坐標
Copy of 平行四邊形面積
Discover Topics
Multiplication
Vectors 3D (Three-Dimensional)
Curve Sketching
Trigonometry
Translation