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knit
Author:
楊騏鴻
GeoGebra
New Resources
兩位數加法
讀磅
祖冲之的期望：内棋与外棋
三位數除以一位數（二）
垂直線的斜率
Discover Resources
做過圓外兩點的一圓並與另一圓相切
Sonia and Julie
Solving Triangles (Ambiguous SSA case)
圓錐曲線與平行四邊形定理
模拟时钟
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Parallelogram
Parabola
Straight Lines
Variance
Diagrams