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5.1-1 角的概念推广
Author:
GeoGebra Institute of WuXi
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
讀磅
【案例】2013年安徽高考15题
三位數除以一位數（一）
圓的切線方程
Discover Resources
棋聖加油
Line Perpendicular to Plane 垂直於平面的直線
Copy of 茵01
堆朵4邊形(試算表版)
切線 (The Tangent Line)
Discover Topics
Dilation
Rectangle
Circle
Vectors 3D (Three-Dimensional)
Linear Functions