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對頂角_2
Author:
maths324324
GeoGebra
New Resources
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
畫出對稱圖形
拼砌四邊形
算柱 (兩位數)
Discover Resources
梯形
Simple Interest 單利息
Copy of Area of square
閱讀量杯
推移（x 方向）的副本
Discover Topics
Geometric Transformations
Trigonometry
Pythagoras or Pythagorean Theorem
Tangent Line or Tangent
Equilateral Triangles