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甜甜圈v5
Author:
lin yiju
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
四邊形的特性
画直线等分三角形的面积
兩位數加法
Discover Resources
games
分段2
Test1
中國火柴遊戲二的副本
橢圓的副本
Discover Topics
Polygons
Random Variables
Probability
Definite Integral
Geometric Distribution