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直线与圆相切
Author:
蔡永志
直线与圆相切
GeoGebra
New Resources
找出對稱軸
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
四邉形 (四年級) 教師版
Discover Resources
範例：自製工具「格線」
Light Game
square and circle
生长弧
S3_Ch4.3_立體圖形的三視圖(3D圖)
Discover Topics
Conic Sections
Median Value
Distributions
Equations
Piecewise Functions