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达芬奇椭圆仪
Author:
蔡永志
Topic:
Conic Sections
达芬奇椭圆仪
GeoGebra
New Resources
兩組對邊相等的四邊形
判斷球體
四邉形 (四年級) 教師版
兩位數加法
畫出對稱圖形
Discover Resources
Equation of Locus of a Point Equidistant from Two Points 軌跡方程：與兩點保持等距
椭圆的定义
正四角柱
數播線上201802
兩位數加法
Discover Topics
Sphere
Sequences and Series
Indefinite Integral
Right Triangles
Normal Distribution