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探究長方形周界的長和闊
Author:
Tong Wing Hong
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
柱體建築師
異分母分數減法
球體建築師
Discover Resources
座標上的定點軌跡圖
圓柱截橫
指數與對數函數
test
閱讀鐘面及數字鐘（時和分）的副本
Discover Topics
Statistical Characteristics
Confidence Interval
Pyramid
Variance
Bar Chart or Bar Graph