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菱形的特性
Author:
felixchow
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
【案例】圆柱体内放置一个大球六个小球
兩位數加法
兩位數除以一位數（二）
Discover Resources
testing2
歐拉圓
circle
跳動的愛心－立體版
圆锥曲线1
Discover Topics
Optimization Problems
Binomial Distribution
Isosceles Triangles
Boxplot
Symmetry