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封閉圖形的斜線區域
Author:
張道民
GeoGebra
New Resources
兩位數除以一位數（二）
找出對稱軸
兩組對邊相等和有直角的四邊形
拼砌四邊形
兩位數除以一位數（一）
Discover Resources
例題11
Lens
Centres
Copie de 分數與小數
泰勒與馬克勞林級數 (Taylor and Maclaurin Series)
Discover Topics
Scatter Plot
Statistical Characteristics
Diagrams
Perimeter
Exponent