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Triangle_5_Q
Author:
ralphchen
GeoGebra
New Resources
撒针估算面积实验
圓的切線方程
常见四边形是否是双心四边形
盈利與虧蝕
第八周作业1
Discover Resources
Sequence指令練習(包絡線：橢圓)
相同圖形的拼砌（三角形）
分數與小數
上課用
Pyth2LK
Discover Topics
Arithmetic Operations
Percentages
Calculus
Coordinates
Trigonometry