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Anticlockwise Rotation (2,3)
Author:
amn
GeoGebra
New Resources
折扣
平行線的判定
常见四边形是否是双心四边形
百分數及其應用
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
waaachen
Apollonius Problem poncelet fouche
中职数学
我的第一个GGB绘本
數織Nonogram
Discover Topics
Linear Equations
Arithmetic Operations
Constructions
Power Functions
Geometric Transformations