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橢圓折痕
Author:
alicesung0324
GeoGebra
New Resources
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
拼砌四邊形
異分母分數減法
找出對稱軸
Discover Resources
利用頂點描述二次函數
八年级奥数之双曲线
柱體建築師
優良作品8(宜庭)
龜甲
Discover Topics
Hyperbola
Planes
Similarity Transformation or Similarity
Secant Line or Secant
Reflection