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Author:
Lin Ching Chieh
GeoGebra
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柱體建築師
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
畫出對稱圖形
Discover Resources
圓周公式應用題1
直線與圓(直線方程式圖形特性3)
高美溼地
circle
數織Nonogram
Discover Topics
Sphere
Quadratic Functions
Intersection
Real Numbers
General Quadrilateral