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劉虹圻 垂心
Author:
呂麗珠
Topic:
Orthocenter
GeoGebra
New Resources
三位數除以一位數（一）
兩位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
拼砌四邊形
【案例】2013年安徽高考15题
Discover Resources
圓圓求切圓
底圖為兩函數，截面為正方形
外公切線段長求法
圓錐完成
Parallel lines
Discover Topics
Geometric Transformations
Geometric Distribution
Ratios
Conditional Probability
Sine