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平行四边形个数
Author:
朱亮
Topic:
Parallelogram
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
四邉形 (四年級) 教師版
找出對稱軸
算柱 (兩位數)
Discover Resources
正多边形内接迭代
可調包絡圓
正三角形
大黨小黨-政黨票的掙扎
我的第一个GGB绘本
Discover Topics
Tree Diagrams
Equations
Right Triangles
Differential Calculus
Statistics