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Parallel lines
Author:
Ng KC
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
柱體建築師
【案例】2013年安徽高考15题
直角坐標平面上的旋轉變換
兩位數加法
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閱讀鐘面及數字鐘（時和分）
用正多邊形面積逼進圓周率
生活中的平面圖形關係─平行
S3 Law of Indices
Copy of 可01
Discover Topics
Power Functions
Percentages
Derivative
Pie Chart or Circle Chart
Isosceles Triangles