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折扣 例2的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
折扣
百分數及其應用
常见四边形是否是双心四边形
圓的切線方程
双心四边形
Discover Resources
任務3
上傳檔案測試
年龄问题
Angle at centre twice angle at circumference
外心
Discover Topics
Trapezium
Linear Equations
Quadratic Equations
Geometric Transformations
Orthocenter