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旋转直角
Author:
wobbly
GeoGebra
New Resources
四邉形 (四年級) 教師版
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數加法
球體建築師
Discover Resources
Reflectional Symmetry 反射對稱
斜率
題11
畢氏定理 (勾股定理) <Pythagorean theorem>
近期新增圖檔
Discover Topics
Prism
Coordinates
Statistics
Pyramid
Scalene Triangles