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杯子反射光線(包絡)
Author:
陳柄何
Topic:
Curve Sketching
GeoGebra
New Resources
畫出對稱圖形
找出對稱軸
三位數除以一位數（二）
sanjiaohanshu
第八周作业
Discover Resources
八年级数学
橢圓軌跡
面積與積分值
重心
圆的平移（平移加滑桿）
Discover Topics
Diagrams
Hyperbola
Trapezium
Geometric Mean
Circumcircle or Circumscribed Circle