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畫三角形 題1d 的複本
Author:
Tony Cheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
四邉形 (四年級) 教師版
拼砌四邊形
兩位數加法
球體建築師
四邊形的特性
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時間參數跳躍函數與向量搭配
Apollonius Problem gergonne 4
圓與兩平行切線
切割正十二面體(平)
橢圓代數性質,光學性質,生活應用
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Cylinder
Geometric Transformations
Integers
Parallelogram
Special Points