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平行四邊形
Author:
Ching-Hui Chou
Topic:
Parallelogram
GeoGebra
New Resources
平行線的判定
比較五件物件的重量
撒针估算面积实验
正方形雪花图案
椭圆内切圆链
Discover Resources
因數的判別
四邊形四個九點圓共點
locus of a segment
Copy of 小數的認識
函数作图工具的副本
Discover Topics
Real Numbers
Ratios
Histogram
Isosceles Triangles
Distributions