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椭圆的两条垂直切线的交点轨迹
Author:
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
球体的体积推导（优化版）
錐體建築師
畫出對稱圖形
球體建築師
兩組對邊相等的四邊形
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clock
Homework2
中一︰棱柱的總表面面積-三角棱柱
DSE Circle-ACT06 Relationship of Tangents and Radius of a Circle
更相减损术几何表示
Discover Topics
Area
Translation
Mathematics
Vectors 3D (Three-Dimensional)
Sine