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Octagon formed inside a parallelogram
作者：
Graeme McRae
主題：
平行四邊形
GeoGebra
最新資源
Segment Addition Postulate (Mild Questions)
Probabilities with Two-Way Tables
Right Triangle Inscribed in a Semicircle
Perpendicular Lines: Quick Exploration
Writing and Graphing Proportional Relationships (k>0)
探索資源
Teorema Phytagoras
ski pass 01
Parallel lines by Angle Copy
Caja dinamica
GeoGebra Pentominoes
探索主題
黎曼和（Riemann Sum）
垂心
複數
正切線或正切
三角函數