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平行線截等比例
Author:
周桂名
平行線截等比例
GeoGebra
New Resources
算柱 (兩位數)
【案例】2013年安徽高考15题
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
Discover Resources
lab5_task2
Introduce Tangent Ratio
圓錐曲線的光學性質
串珠(大小不同)
正投影
Discover Topics
Linear Equations
Area
Intersection
Linear Programming or Linear Optimization
Derivative