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公切線的條數
Author:
李春培
公切線的條數
GeoGebra
New Resources
画直线等分三角形的面积
兩位數除以一位數（一）
異分母分數減法
兩組對邊相等和有直角的四邊形
找出對稱軸
Discover Resources
square construction
底圖為圓，縱切面為正方形
展開圖折合遊戲
四邊形ADFE的面積是多少？
翰林數學_2下_CH4-3_梯形中線性質
Discover Topics
Expected Value
Isosceles Triangles
Stochastic Process or Random Process
Tangent Line or Tangent
Equations