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一般變換的副本
Author:
xiaodandan
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
常见四边形是否是双心四边形
双心四边形
盈利與虧蝕
直線的斜率
讀磅
Discover Resources
學習單：三角形內(外)角合
gjc097b21 點對三角形的對稱
GGB2
Dart Board
蜗牛壳模型
Discover Topics
Limits
Set Theory
Standard Deviation
Distributions
Parabola