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三角形的三线
Author:
Xiaoting Yuan
Topic:
Triangles
GeoGebra
New Resources
垂直線的斜率
平行線的斜率
祖冲之的期望：内棋与外棋
漂亮的摇摆曲线
双心四边形
Discover Resources
圓內正方形夾小圓
Testing
Learn01
認識假分數
放缩尺
Discover Topics
Division
Linear Equations
Pie Chart or Circle Chart
Mathematics
Parametric Curves