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test02繪本用
Author:
趙偉晉
GeoGebra
New Resources
四邉形 (四年級) 教師版
近似值：有效數字
兩組對邊相等和有直角的四邊形
畫出對稱圖形
異分母分數減法
Discover Resources
圓周角與弦切角
Frequency Change
平移法（三）
-1 ≤ cosA cosB cosC ≤ 1/8
三角函数的副本
Discover Topics
Cylinder
Vectors 2D (Two-Dimensional)
Numbers
Pythagoras or Pythagorean Theorem
Similarity Transformation or Similarity