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橢圓軌跡04
Author:
luke huang
GeoGebra
New Resources
四邉形 (四年級) 教師版
四邊形的特性
拼砌四邊形
找出對稱軸
第八周作业
Discover Resources
正三角形的旋轉2
畫三角形 題3c
Math
平移
抛物线动态（不一样的做法）
Discover Topics
Tangent Line or Tangent
Calculus
Equilateral Triangles
Arithmetic Operations
Pythagoras or Pythagorean Theorem