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平行四邊形面積的副本
Author:
xiaodandan
,
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
異分母分數減法
第八周作业
兩位數除以一位數（一）
三位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
Reference Angle 參考角
圆与它的外切圆
Net1- AB+AD+AE
频率分布直方图与箱线图
蝴蝶定理（唐老师的课程）
Discover Topics
Means
Scalene Triangles
Circumcircle or Circumscribed Circle
Limits
Vectors