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gjh-e01-02 未知數邊長的長方形
Author:
Chia-Yen Tsai
GeoGebra
New Resources
畫出對稱圖形
球體建築師
三位數除以一位數（二）
拼砌四邊形
異分母分數減法
Discover Resources
cos(x) 的圖形
正五角柱
test geoebra1
三次多項式的切線
动态演示
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Reflection
Means
Planes
Sphere
Numbers