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椭圆规
Author:
蔡永志
Topic:
Conic Sections
椭圆规
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數加法
錐體建築師
兩組對邊相等和有直角的四邊形
找出對稱軸
Discover Resources
鋸齒狀的函數
拿破侖定理(外拿破侖)證明二
工作紙-真分數乘以真分數
足迹
拋物線五-包絡線法
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Geometry
Scalene Triangles
Random Experiments
Dilation
Surface