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優良作品2
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
球體建築師
四邉形 (四年級) 教師版
找出對稱軸
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Angle at Centre & Angle at Circumference: Proof 圓心角與圓周角：証明
angles sum of a triangle 2
拋物線的疊合
管路流量分析
ggb7黃金螺線
Discover Topics
Set Theory
Distributions
Rotation
Indefinite Integral
Bar Chart or Bar Graph