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國旗
Author:
王正豪
國旗
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邊形的特性
畫出對稱圖形
三位數除以一位數（一）
直角坐標平面上的旋轉變換
Discover Resources
方格紙上畫四邊形
Integer
螢橋國中 洪芷昀
Graph of Tangent
Cross Product for 2D Vectors (平面外積)
Discover Topics
Set Theory
Arithmetic Operations
Incircle or Inscribed Circle
Random Variables
Geometry