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齒輪作圖
Author:
Lin Ching Chieh
GeoGebra
New Resources
近似值：有效數字
畫出對稱圖形
拼砌四邊形
球體建築師
【案例】2018年全国1卷理科12题
Discover Resources
會動的數據*3
面積的認識4
分數(等值)
向量分解的副本
兩組對邊相等的四邊形（三年級）
Discover Topics
Arithmetic Operations
Inequalities
Root
Intersection
Differential Equation