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Two reflections
作者：
Karen Moon
GeoGebra
最新資源
Perpendicular Lines: Quick Exploration
Linear Combination of Vectors
Calculating Arc Length, Radius, and Central Angle
Rovnoběžnost rovin
Writing and Graphing Proportional Relationships (k>0)
探索資源
The Jowkouski Transformation
poolcoordinaten
Liza_Feldman_Qtr1project_O4
Pentagon-Grace
Perpendicular Bisector of a line segment investigation
探索主題
等腰三角形
四邊形
黎曼和（Riemann Sum）
函數圖形
橢圓