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变化的平行四边形
Author:
孙逸旻
Topic:
Parallelogram
GeoGebra
New Resources
兩組對邊相等的四邊形
柱體建築師
錐體建築師
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
Discover Resources
國小數與量
容積上升(立體、平面)
骨牌
单晨答上海鲍老师
圆周展开
Discover Topics
Inequalities
Special Points
Rectangle
Ratios
Geometry