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甜甜圈v5
Author:
lin yiju
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（二）
畫出對稱圖形
異分母分數減法
找出對稱軸
Discover Resources
「相似三角形」任务2
BkD_act15_04c
Example 4
a sin(bx+c) + d 的圖形的副本
數織Nonogram
Discover Topics
Symmetry
Random Variables
Solids or 3D Shapes
Straight Lines
General Quadrilateral