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折纸角度探究1
Author:
陈力
Topic:
Constructions
,
Geometry
,
Symmetry
GeoGebra
New Resources
三位數除以一位數（一）
畫出對稱圖形
画直线等分三角形的面积
兩位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
Homework5
sun2
滾球平台
圓面積示範
元旦快乐（制作：孟宝兴）
Discover Topics
Solids or 3D Shapes
Standard Deviation
Triangles
Random Experiments
Fractions