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證平行四邊形 (對邊相等)
Author:
W.L. Wong, Albert
GeoGebra
New Resources
畫出對稱圖形
柱體建築師
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
拼砌四邊形
Discover Resources
組織圖、頻數多邊形
P6 圓周03C
一道三视图的题目（三视图作法参考）
S2 Chapter11.1 三角形的對鄰斜
公因數
Discover Topics
Dilation
Isosceles Triangles
Coordinates
Division
Logarithm