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翰林數學_2下_CH4-2_平行四邊形性質
Author:
翰林數學
GeoGebra
New Resources
Nested spiral octagon
兩組對邊相等和有直角的四邊形
拼砌四邊形
算柱 (兩位數)
畫出對稱圖形
Discover Resources
梯形的面積
定积分的概念
銳角三角：sin, cos
fraction compare
Inclined plane (Angle between two planes)
Discover Topics
Hyperbola
Median Line
Equilateral Triangles
Scatter Plot
Area