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蝴蝶定理动态演示
Author:
weizhuli(卫珠礼)
GeoGebra
New Resources
兩位數除以一位數（一）
畫出對稱圖形
【案例】2018年全国1卷理科12题
球體建築師
找出對稱軸
Discover Resources
Form 3 (中三）
[問題] 橢圓兩焦點 (6,0), (0,8)
基測數學100-1-30 ：等腰三角形求角度
Klein Bottle
rotational symmetry_2
Discover Topics
Straight Lines
Symmetry
Linear Regression
Plane Figures or Shapes
Rectangle