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電子幾何條（2014）
Author:
Anthony OR 柯志明
Topic:
Quadrilaterals
GeoGebra
New Resources
長方體平面投影 (Codex版)
Fibonacci Clock
AI 訓練教室
找出對稱軸
四邊形的特性
Discover Resources
圓圓求切圓
淨敗場數機率棋盤圖
軌跡五、六︰移動點與兩直線保持相等距離(平行線/角平分線)
How to reconstruct a quadrilateral farm to a triangular one with the same area?
點的堆墮
Discover Topics
Fractal Geometry
Pie Chart or Circle Chart
Arithmetic Operations
Boxplot
Subtraction