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圓與切線
Author:
李春培
圓與切線
GeoGebra
New Resources
圓周公式的應用
讀磅
祖冲之的期望：内棋与外棋
多邊形的面積
兩位數除以一位數（一）
Discover Resources
任務2
Decimal
點座標旋轉公式
maths
加法(10一數的副本
Discover Topics
Addition
Algebra
Solids or 3D Shapes
Arithmetic
Angles