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Author:
tan90
GeoGebra
New Resources
异形操场
常见四边形是否是双心四边形
盈利與虧蝕
第八周作业2
正方形雪花图案
Discover Resources
史坦納圓鍊 (Steiner Chain)
中點軌跡(動點在兩圓上)
分段移動
ghseh 二次函數描點法上下平移-5
固定三角形的條件−題1的副本
Discover Topics
Exponential Functions
Kite
Geometric Mean
Optimization Problems
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