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量角器1
Author:
Sheu Anderson
GeoGebra
New Resources
科赫雪花
中华人民共和国国旗
常见四边形是否是双心四边形
盈利與虧蝕
龙形曲线-分形龙
Discover Resources
數學模型
quadrilaterals 3
Quartiles and Box Plot (two data sets) 四分位數與框線圖（比較兩組數據）
圓柱動態展開圖
國旗
Discover Topics
Trapezium
Real Numbers
Random Experiments
Arithmetic Operations
Perimeter