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切線段等長
Author:
謝易達
可移動P點，檢查切線段是否等長
GeoGebra
New Resources
拼砌四邊形
算柱 (兩位數)
畫出對稱圖形
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
Discover Resources
內擺線
test
Meaning of Negative Indices 負指數的意義
旁心三角形的九點圓
Question 2
Discover Topics
Ellipse
Conic Sections
Straight Lines
Mathematics
Ratios